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Indian Air Force

The Indian Air Force (IAF) is the air arm of the Indian Armed Forces. Its primary mission is to secure Indian airspace and to conduct aerial warfare during armed conflicts. It was officially established on 8 October 1932 as an auxiliary air force of the British Empire which honoured India's aviation service during World War II with the prefix Royal. After India gained independence from United Kingdom in 1947, the name Royal Indian Air Force was kept and served in the name of the Dominion of India. With the transition to a republic in 1950, the prefix Royal was removed.

Since 1950, the IAF has been involved in four wars with neighbouring Pakistan. Other major operations undertaken by the IAF include Operation Vijay, Operation Meghdoot, Operation Cactus and Operation Poomalai. The IAF's mission expands beyond engagement with hostile forces, with the IAF participating in United Nations peacekeeping missions.

The President of India holds the rank of Supreme Commander of the IAF. , 170,576 personnel are in service with the Indian Air Force. The Chief of the Air Staff, an air chief marshal, is a four-star officer and is responsible for the bulk of operational command of the Air Force. There is never more than one serving ACM at any given time in the IAF. The rank of Marshal of the Air Force has been conferred by the President of India on one occasion in history, to Arjan Singh. On 26 January 2002, Singh became the first and so far, only five-star rank officer of the IAF.

Mission
[[File:IAF Roundels.gif|thumb|150px|Evolution of the IAF roundel over the years: 1. 1933–1942

2. 1942–1945

3. 1947–1950

4. 1950 – present]]

The IAF's mission is defined by the Armed Forces Act of 1947, the Constitution of India, and the Air Force Act of 1950. It decrees that in the aerial battlespace: "Defence of India and every part there of including preparation for defence and all such acts as may be conducive in times of war to its prosecution and after its termination to effective demobilisation."

 * The Primary objective of IAF is to defend the nation and its airspace against Air threats in coordination with Army and Navy.
 * The secondary purpose is to assist civil power during natural calamities and internal disturbances.
 * The IAF provides close air support to the Indian Army troops in the battlefield and also provides strategic and tactical airlift capabilities.
 * IAF also provides strategic air lift or secondary Airlift for the Indian Army.
 * The IAF also operates the Integrated Space Cell together with the other two branches of the Indian Armed Forces, the Department of Space and the Indian Space Research Organization (ISRO).
 * Rescue of civilians during natural disasters
 * Evacuation of Indian nationals from foreign countries in case of instability or other problems

In practice, this is taken as a directive meaning the IAF bears the responsibility of safeguarding Indian airspace and thus furthering national interests in conjunction with the other branches of the armed forces. The IAF provides close air support to the Indian Army troops on the battlefield as well as strategic and tactical airlift capabilities. The Integrated Space Cell is operated by the Indian Armed Forces, the civilian Department of Space, and the Indian Space Research Organisation. By uniting the civilian run space exploration organisations and the military faculty under a single Integrated Space Cell the military is able to efficiently benefit from innovation in the civilian sector of space exploration, and the civilian departments benefit as well.

The Indian Air Force, with highly trained crews, pilots, and access to modern military assets provides India with the capacity to provide rapid response evacuation, search-and-rescue (SAR) operations, and delivery of relief supplies to affected areas via cargo aircraft. The IAF provided extensive assistance to relief operations during natural calamities such as the Gujarat cyclone in 1998, the tsunami in 2004, and North India floods in 2013. The IAF has also undertaken relief missions such as Operation Rainbow in Sri Lanka.

Formation and early pilots
The Indian Air Force was established on 8 October 1932 in British India as an auxiliary air force of the Royal Air Force. The enactment of the Indian Air Force Act 1932 stipulated out their auxiliary status and enforced the adoption of the Royal Air Force uniforms, badges, brevets and insignia. On 1 April 1933, the IAF commissioned its first squadron, No.1 Squadron, with four Westland Wapiti biplanes and five Indian pilots. The Indian pilots were led by British RAF Commanding officer Flight Lieutenant (later Air Vice Marshal) Cecil Bouchier.

World War II (1939–1945)
During World War II, the IAF played an instrumental role in halting the advance of the Japanese army in Burma, where the first IAF air strike was executed. The target for this first mission was the Japanese military base in Arakan, after which IAF strike missions continued against the Japanese airbases at Mae Hong Son, Chiang Mai and Chiang Rai in northern Thailand.

The IAF was mainly involved in strike, close air support, aerial reconnaissance, bomber escort and pathfinding missions for RAF and USAAF heavy bombers. RAF and IAF pilots would train by flying with their non-native air wings to gain combat experience and communication proficiency. Besides operations in the Burma Theatre IAF pilots participated in air operations in North Africa and Europe.

In addition to the IAF, many native Indians and some 200 Indians resident in Britain volunteered to join the RAF and Women's Auxiliary Air Force. One such volunteer was Sergeant Shailendra Eknath Sukthankar, who served as a navigator with No. 83 Squadron. Sukthankar was commissioned as an officer, and on 14 September 1943, received the DFC. Squadron Leader Sukthankar eventually completed 45 operations, 14 of them on board the RAF Museum's Avro Lancaster R5868. Another volunteer was Assistant Section Officer Noor Inayat Khan a Muslim pacifist and Indian nationalist who joined the WAAF, in November 1940, to fight against Nazism. Noor Khan served bravely as a secret agent with the Special Operations Executive (SOE) in France, but was eventually betrayed and captured. Many of these Indian airmen were seconded or transferred to the expanding IAF such as Squadron Leader Mohinder Singh Pujji DFC who led No. 4 Squadron IAF in Burma.

During the war, the IAF experienced a phase of steady expansion. New aircraft added to the fleet included the US-built Vultee Vengeance, Douglas Dakota, the British Hawker Hurricane, Supermarine Spitfire, and Westland Lysander.

In recognition of the valiant service by the IAF, King George VI conferred the prefix "Royal" in 1945. Thereafter the IAF was referred to as the Royal Indian Air Force. In 1950, when India became a republic, the prefix was dropped and it reverted to being the Indian Air Force.

First years of independence (1947–1950)
After it became independent from the British Empire in 1947, British India was partitioned into the new states of the Dominion of India and the Dominion of Pakistan. Along the lines of the geographical partition, the assets of the air force were divided between the new countries. India's air force retained the name of the Royal Indian Air Force, but three of the ten operational squadrons and facilities, located within the borders of Pakistan, were transferred to the Royal Pakistan Air Force. The RIAF Roundel was changed to an interim 'Chakra' roundel derived from the Ashoka Chakra.

Around the same time, conflict broke out between them over the control of the princely state of Jammu & Kashmir. With Pakistani forces moving into the state, its Maharaja decided to accede to India in order to receive military help. The day after, the Instrument of Accession was signed, the RIAF was called upon to transport troops into the war zone. And this was when a good management of logistics came into help. This led to the eruption of full-scale war between India and Pakistan, though there was no formal declaration of war. During the war, the RIAF did not engage the Pakistan Air Force in air-to-air combat; however, a couple of IAF Hawker Tempest fighters did intercept a Pakistani Douglas DC-3 transport aircraft & tried to shoot it down but the pilot of the DC-3 (Mukhtar Ahmad Dogar) managed to evade the fighters. Other than that, it also provided effective transport and close air support to the Indian troops. When India became a republic in 1950, the prefix 'Royal' was dropped from the Indian Air Force. At the same time, the current IAF roundel was adopted.

Congo crisis and Annexation of Goa (1960–1961)
The IAF saw significant conflict in 1960, when Belgium's 75-year rule over Congo ended abruptly, engulfing the nation in widespread violence and rebellion. The IAF activated No. 5 Squadron, equipped with English Electric Canberra, to support the United Nations Operation in the Congo. The squadron started undertaking operational missions in November. The unit remained there until 1966, when the UN mission ended. Operating from Leopoldville and Kamina, the Canberras soon destroyed the rebel Air Force and provided the UN ground forces with its only long-range air support force.

In late 1961, the Indian government decided to attack the Portuguese colony of Goa after years of disagreement between New Delhi and Lisbon. The Indian Air Force was requested to provide support elements to the ground force in what was called Operation Vijay. Probing flights by some fighters and bombers were carried out from 8–18 December to draw out the Portuguese Air Force, but to no avail. On 18 December, two waves of Canberra bombers bombed the runway of Dabolim airfield taking care not to bomb the Terminals and the ATC tower. Two Portuguese transport aircraft (a Super Constellation and a DC-6) found on the airfield were left alone so that they could be captured intact. However the Portuguese pilots managed to take off the aircraft from the still damaged airfield and made their getaway to Portugal. Hunters attacked the wireless station at Bambolim. Vampires were used to provide air support to the ground forces. In Daman, Mystères were used to strike Portuguese gun positions. Ouragans (called Toofanis in the IAF) bombed the runways at Diu and destroyed the control tower, wireless station and the meteorological station. After the Portuguese surrendered the former colony was integrated into India.

Border disputes and changes in the IAF (1962–1971)
In 1962, border disagreements between China and India escalated to a war when China mobilised its troops across the Indian border. During the Sino-Indian War, India's military planners failed to deploy and effectively use the IAF against the invading Chinese forces. This resulted in India losing a significant amount of advantage to the Chinese; especially in Jammu and Kashmir.

On 24 April 1965, an Indian Ouragan strayed over the Pakistani border and was forced to land by a Pakistani Lockheed F-104 Starfighter, the pilot was returned to India; however, the captured aircraft would be kept by the Pakistan Air Force(PAF) and ended up being displayed at the PAF museum in Peshawar.

Three years after the Sino-Indian conflict, in 1965, Pakistan launched Operation Gibraltar, strategy of Pakistan to infiltrate Jammu and Kashmir, and start a rebellion against Indian rule. This came to be known as the Second Kashmir War. This was the first time the IAF actively engaged an enemy air force. However, instead of providing close air support to the Indian Army, the IAF carried out independent raids against PAF bases. These bases were situated deep inside Pakistani territory, making IAF fighters vulnerable to anti-aircraft fire. During the course of the conflict, the PAF enjoyed technological superiority over the IAF and had achieved substantial strategic and tactical advantage due to the suddenness of the attack and advanced state of their air force. The IAF was restrained by the government from retaliating to PAF attacks in the eastern sector while a substantive part of its combat force was deployed there and could not be transferred to the western sector, against the possibility of Chinese intervention. Moreover, international (UN) stipulations and norms did not permit military force to be introduced into the Indian state of J&K beyond what was agreed during the 1949 ceasefire. Despite this, the IAF was able to prevent the PAF from gaining air superiority over conflict zones. The small and nimble IAF Folland Gnats proved effective against the F-86 Sabres of the PAF earning it the nickname "Sabre Slayers". By the time the conflict had ended, the IAF lost 60–70 aircraft, while the PAF lost 43 aircraft. More than 60% of IAF's aircraft losses took place in ground attack missions to enemy ground-fire, since fighter-bomber aircraft would carry out repeated dive attacks on the same target. According to, Air Chief Marshal Arjan Singh of the Indian Air Force, despite having been qualitatively inferior, IAF achieved air superiority in three days in the 1965 War.

After the 1965 war, the IAF underwent a series of changes to improve its capabilities. In 1966, the Para Commandos regiment was created. To increase its logistics supply and rescue operations ability, the IAF inducted 72 HS 748s which were built by Hindustan Aeronautics Limited (HAL) under licence from Avro. India started to put more stress on indigenous manufacture of fighter aircraft. As a result, HAL HF-24 Marut, designed by the famed German aerospace engineer Kurt Tank, were inducted into the air force. HAL also started developing an improved version of the Folland Gnat, known as HAL Ajeet. At the same time, the IAF also started inducting Mach 2 capable Soviet MiG-21 and Sukhoi Su-7 fighters.

Bangladesh Liberation War (1971)
By late 1971, the intensification of the independence movement in East Pakistan lead to the Bangladesh Liberation War between India and Pakistan. On 22 November 1971, 10 days before the start of a full-scale war, four PAF F-86 Sabre jets attacked Indian and Mukti Bahini positions at Garibpur, near the international border. Two of the four PAF Sabres were shot down and one damaged by the IAF's Folland Gnats. On 3 December, India formally declared war against Pakistan following massive preemptive strikes by the PAF against Indian Air Force installations in Srinagar, Ambala, Sirsa, Halwara and Jodhpur. However, the IAF did not suffer significantly because the leadership had anticipated such a move and precautions were taken. The Indian Air Force was quick to respond to Pakistani air strikes, following which the PAF carried out mostly defensive sorties.

Within the first two weeks, the IAF had carried out almost 12,000 sorties over East Pakistan and also provided close air support to the advancing Indian Army. IAF also assisted the Indian Navy in its operations against the Pakistani Navy in the Bay of Bengal and Arabian Sea. On the western front, the IAF destroyed more than 20 Pakistani tanks, 4 APCs and a supply train during the Battle of Longewala. The IAF undertook strategic bombing of West Pakistan by carrying out raids on oil installations in Karachi, the Mangla Dam and a gas plant in Sindh. Similar strategy was also deployed in East Pakistan and as the IAF achieved complete air superiority on the eastern front, the ordnance factories, runways, and other vital areas of East Pakistan were severely damaged. By the time Pakistani forces surrendered, the IAF destroyed 94 PAF Aircraft The IAF was able to conduct a wide range of missions – troop support; air combat; deep penetration strikes; para-dropping behind enemy lines; feints to draw enemy fighters away from the actual target; bombing; and reconnaissance. In contrast, the Pakistan Air Force, which was solely focused on air combat, was blown out of the subcontinent's skies within the first week of the war. Those PAF aircraft that survived took refuge at Iranian air bases or in concrete bunkers, refusing to offer a fight. Hostilities officially ended at 14:30 GMT on 17 December, after the fall of Dacca on 15 December. India claimed large gains of territory in West Pakistan (although pre-war boundaries were recognised after the war), and the independence of Pakistan's East wing as Bangladesh was confirmed. The IAF had flown over 16,000 sorties on both East and West fronts; including sorties by transport aircraft and helicopters. while the PAF flew about 30 and 2,840. More than 80 per cent of the IAF's sorties were close-support and interdiction, and according to neutral assessments about 45 IAF Aircraft were lost while, Pakistan lost 75 aircraft. Not including any F-6s, Mirage IIIs, or the six Jordanian F-104s which failed to return to their donors. But the imbalance in air losses was explained by the IAF's considerably higher sortie rate, and its emphasis on ground-attack missions. On the ground Pakistan suffered most, with 9,000 killed and 25,000 wounded while India lost 3,000 dead and 12,000 wounded. The loss of armoured vehicles was similarly imbalanced. This represented a major defeat for Pakistan. Towards the end of the war, IAF's transport planes dropped leaflets over Dhaka urging the Pakistani forces to surrender, demoralising Pakistani troops in East Pakistan.

Incidents before Kargil (1984–1988)
In 1984, India launched Operation Meghdoot to capture the Siachen Glacier in the contested Kashmir region. In Op Meghdoot, IAF's Mi-8, Chetak and Cheetah helicopters airlifted hundreds of Indian troops to Siachen. Launched on 13 April 1984, this military operation was unique because of Siachen's inhospitable terrain and climate. The military action was successful, given the fact that under a previous agreement, neither Pakistan nor India had stationed any personnel in the area. With India's successful Operation Meghdoot, it gained control of the Siachen Glacier. India has established control over all of the 70 km long Siachen Glacier and all of its tributary glaciers, as well as the three main passes of the Saltoro Ridge immediately west of the glacier—Sia La, Bilafond La, and Gyong La. Pakistan controls the glacial valleys immediately west of the Saltoro Ridge. According to the TIME magazine, India gained more than 1000 sqmi of territory because of its military operations in Siachen.

Following the inability to negotiate an end to the Sri Lankan Civil War, and to provide humanitarian aid through an unarmed convoy of ships, the Indian Government decided to carry out an airdrop of the humanitarian supplies on the evening of 4 June 1987 designated Operation Poomalai (Tamil: Garland) or Eagle Mission 4. Five An-32s escorted by four Mirage 2000 of 7 Sqn AF, 'The Battleaxes', carried out the supply drop which faced no opposition from the Sri Lankan Armed Forces. Another Mirage 2000 orbited 150 km away, acting as an airborne relay of messages to the entire fleet since they would be outside radio range once they descended to low levels. The Mirage 2000 escort formation was led by Wg Cdr Ajit Bhavnani, with Sqn Ldrs Bakshi, NA Moitra and JS Panesar as his team members and Sqn Ldr KG Bewoor as the relay pilot. Sri Lanka accused India of "blatant violation of sovereignty". India insisted that it was acting only on humanitarian grounds.

In 1987, the IAF supported the Indian Peace Keeping Force (IPKF) in northern and eastern Sri Lanka in Operation Pawan. About 70,000 sorties were flown by the IAF's transport and helicopter force in support of nearly 100,000 troops and paramilitary forces without a single aircraft lost or mission aborted. IAF An-32s maintained a continuous air link between air bases in South India and Northern Sri Lanka transporting men, equipment, rations and evacuating casualties. Mi-8s supported the ground forces and also provided air transportation to the Sri Lankan civil administration during the elections. Mi-25s of No. 125 Helicopter Unit were utilised to provide suppressive fire against militant strong points and to interdict coastal and clandestine riverine traffic.

On the night of 3 November 1988, the Indian Air Force mounted special operations to airlift a parachute battalion group from Agra, non-stop over 2000 km to the remote Indian Ocean archipelago of the Maldives in response to Maldivian president Gayoom's request for military help against a mercenary invasion in Operation Cactus. The IL-76s of No. 44 Squadron landed at Hulhule at 0030 hours and the Indian paratroopers secured the airfield and restored Government rule at Male within hours. Four Mirage 2000 aircraft of 7 Sqn, led by Wg Cdr AV 'Doc' Vaidya, carried out a show of force early that morning, making low-level passes over the islands.

Kargil War (1999)
On 11 May 1999, the Indian Air Force was called in to provide close air support to the Indian Army at the height of the ongoing Kargil conflict with the use of helicopters. The IAF strike was code named Operation Safed Sagar. The first strikes were launched on 26 May, when the Indian Air Force struck infiltrator positions with fighter aircraft and helicopter gunships. The initial strikes saw MiG-27s carrying out offensive sorties, with MiG-21s and later MiG-29s providing fighter cover. The IAF also deployed its radars and the MiG-29 fighters in vast numbers to keep check on Pakistani military movements across the border. Srinagar Airport was at this time closed to civilian air-traffic and dedicated to the Indian Air Force.

On 27 May, the Indian Air Force suffered its first fatality when it lost a MiG-21 and a MiG-27 in quick succession. The following day, while on an offensive sortie, a Mi-17 was shot down by three Stinger missiles and lost its entire crew of four. Following these losses the IAF immediately withdrew helicopters from offensive roles as a measure against the threat of Man-portable air-defence systems (MANPAD). On 30 May, the Mirage 2000s were introduced in offensive capability, as they were deemed better in performance under the high-altitude conditions of the conflict zone. Mirage 2000s were not only better equipped to counter the MANPAD threat compared to the MiGs, but also gave IAF the ability to carry out aerial raids at night. The MiG-29s were used extensively to provide fighter escort to the Mirage 2000. Radar transmissions of Pakistani F-16s were picked up repeatedly, but these aircraft stayed away. The Mirages successfully targeted enemy camps and logistic bases in Kargil and severely disrupted their supply lines. Mirage 2000s were used for strikes on Muntho Dhalo and the heavily defended Tiger Hill and paved the way for their early recapture. At the height of the conflict, the IAF was conducting over forty sorties daily over the Kargil region. By 26 July, the Indian forces had successfully repulsed the Pakistani forces from Kargil.

Post Kargil incidents (1999–present)
Since the late 1990s, the Indian Air Force has been modernising its fleet to counter challenges in the new century. The fleet size of the IAF has decreased to 33 squadrons during this period because of the retirement of older aircraft. Still, India maintains the fourth largest air force in the world. The IAF plans to raise its strength to 42 squadrons. Self-reliance is the main aim that is being pursued by the defence research and manufacturing agencies.

On 10 August 1999, IAF MiG-21s intercepted a Pakistan Navy Breguet Atlantique which was flying over Sir Creek, a disputed territory. The aircraft was shot down killing all 16 Pakistani Navy personnel on board. India claimed that the Atlantic was on a mission to gather information on IAF air defence, a charge emphatically rejected by Pakistan which argued that the unarmed aircraft was on a training mission.

On 2 August 2002, the Indian Air Force bombed Pakistani posts along the Line of Control in the Kel sector, following inputs about Pakistani military buildup near the sector.

On 20 August 2013, the Indian Air Force created a world record by performing the highest landing of a C-130J at the Daulat Beg Oldi airstrip in Ladakh at the height of 5065 m. The medium-lift aircraft will be used to deliver troops, supplies and improve communication networks. The aircraft belonged to the Veiled Vipers squadron based at Hindon Air Force Station.

On 13 July 2014, two MiG-21s were sent from Jodhpur Air Base to investigate a Turkish Airlines aircraft over Jaisalmer when it repeated an identification code, provided by another commercial passenger plane that had already entered Indian airspace before it. The flights were on their way to Mumbai and Delhi, and the planes were later allowed to proceed after their credentials were verified.

2019 Balakot airstrike
Following heightened tensions between India and Pakistan after the 2019 Pulwama attack that was carried out by Jaish-e-Mohammed (JeM) which killed forty servicemen of the Central Reserve Police Force, a group of twelve Mirage 2000 fighter planes from the Indian Air Force carried out air strikes on alleged JeM bases in Chakothi and Muzaffarabad in the Pakistan-administered Kashmir. Furthermore, the Mirage 2000s targeted an alleged JeM training camp in Balakot, a town in the Pakistani province of Khyber Pakhtunkhwa. Pakistan claimed that the Indian aircraft had only dropped bombs in the forest area demolishing pine trees near the Jaba village which is 19 km away from Balakot and Indian officials claimed to bomb and kill a large number of terrorists in the airstrike.

2019 India–Pakistan standoff
On 27 February 2019, in retaliation for the IAF bombing of an alleged terrorist hideout in Balakot, a group of PAF Mirage-5 and JF-17 fighters allegedly conducted an airstrike against certain ground targets across the Line of Control. They were intercepted by a group of IAF fighters consisting of Su-30MKI and MiG-21 jets. An ensuing dogfight began. According to India, one PAF F-16 was shot down by an IAF MiG-21 piloted by Abhinandan Varthaman, while Pakistan denied use of F-16s in the operation. According to Pakistan, a MiG-21 and a Su30MKI were shot down, while India claims that only the MiG-21 was shot down. Indian officials rejected Pakistani claims of shooting down an Su-30MKI stating that its impossible to hide an aircraft crash as of now in populated area like Kashmir and said its a coverup for the loss of F16. While the downed MiG-21's pilot had ejected successfully, he landed in Pakistan-administered Kashmir, and was captured by the Pakistan military. Before his capture he was assaulted by a few locals. After a couple of days of captivity, the captured pilot was released by Pakistan per Third Geneva convention obligations. While Pakistan denied involvement of any of its F-16 aircraft in the strike, the IAF presented remnants of AMRAAM missiles that are only carried by the F-16s within the PAF as proof of their involvement. Unnamed US officials told Foreign Policy magazine in April 2019 that an audit didn't find any Pakistani F-16s missing. However, this was not confirmed by the United States, which cited it as bilateral matter between US and Pakistan. Various international military observers reject Indian claim of shooting down PAF F-16.

IAF also lost a MI-17 helicopter during Indo-Pakistan standoff 2019. On the same day of 27th February 2019, around twenty minutes before the MiG-21 downing, an Indian Mil Mi-17 helicopter crashed, killing six Indian Air Force personnel and one civilian in the Budgam district. It was under the command of squadron leaders Siddarth Vashista and Ninad Mandavgane and crashed within ten minutes of take-off from the Srinagar air base. Four other IAF personnel were flight engineer Vishal Kumar Pandey, sergeant Vikrant Sehrawat, corporals Deepak Pandey and Pankaj Kumars that were killed along with two pilots. In October 2019, IAF confirmed that the helicopter was shot down by an Indian SPYDER surface-to-air missile mistaking it as an PAF aircraft and said that five personnel were held guilty for the lapses. IAF dismissed Group Captain Suman Roy Choudhry Chief Operations Officer (COO) of the Srinagar Air Force Station from his service in 2023 for his negligence during PAF strikes.

Structure
The President of India is the Supreme Commander of all Indian armed forces and by virtue of that fact is the national Commander-in-chief of the Air Force. The Chief of the Air Staff with the rank of Air chief marshal is the Commander In January 2002, the government conferred the rank of Marshal of the Indian Air Force on Arjan Singh making him the first and only Five-star officer with the Indian Air Force and ceremonial chief of the air force.

Commands
The Indian Air Force is divided into five operational and two functional commands. Each Command is headed by an Air Officer Commanding-in-Chief with the rank of Air Marshal. The purpose of an operational command is to conduct military operations using aircraft within its area of responsibility, whereas the responsibility of functional commands is to maintain combat readiness. Aside from the Training Command at Bangalore, the primary flight training is done at the Air Force Academy (located in Hyderabad), followed by operational training at various other schools. Advanced officer training for command positions is also conducted at the Defence Services Staff College; specialised advanced flight training schools are located at Bidar, Karnataka and Hakimpet, Telangana (also the location for helicopter training). Technical schools are found at a number of other locations.

Note: + = Functional Command

Wings
A wing is a formation intermediate between a command and a squadron. It generally consists of two or three IAF squadrons and helicopter units, along with forward base support units (FBSU). FBSUs do not have or host any squadrons or helicopter units but act as transit airbases for routine operations. In times of war, they can become fully fledged air bases playing host to various squadrons. In all, about 47 wings and 19 FBSUs make up the IAF. Wings are typically commanded by an air commodore.

Stations
Within each operational command are anywhere from nine to sixteen bases or stations. Smaller than wings, but similarly organised, stations are static units commanded by a group captain. A station typically has one wing and one or two squadrons assigned to it.

Squadrons and units
Squadrons are the field units and formations attached to static locations. Thus, a flying squadron or unit is a sub-unit of an air force station which carries out the primary task of the IAF. A fighter squadron consists of 18 aircraft; all fighter squadrons are headed by a commanding officer with the rank of wing commander. Some transport squadrons and helicopter units are headed by a commanding officer with the rank of group captain.

Flights
Flights are sub-divisions of squadrons, commanded by a squadron leader. Each flight consists of two sections.

Sections
The smallest unit is the section, led by a flight lieutenant. Each section consists of three aircraft.

Within this formation structure, IAF has several service branches for day-to-day operations. They are:

Garud Commando Force
The Garud commandos are the special forces of the Indian Air Force (IAF). Their tasks include counter-terrorism, hostage rescue, providing security to IAF's vulnerably located assets and various air force-specific special operations. First conceived in 2002, this unit was officially established on February 6, 2004.

All Garuds are volunteers who are imparted a 52-week basic training, which includes a three-month probation followed by special operations training, basic airborne training and other warfare and survival skills. The last phase of basic training sees Garuds been deployed to get combat experience. Advanced training follows, which includes specialised weapons training.

The mandated tasks of the Garuds include direct action, special reconnaissance, rescuing downed pilots in hostile territory, establishing airbases in hostile territory and providing air-traffic control to these airbases. The Garuds also undertake suppression of enemy air defences and the destruction of other enemy assets such as radars, evaluation of the outcomes of Indian airstrikes and use laser designators to guide Indian airstrikes.

The security of IAF installations and assets are usually performed by the Air Force Police and the Defence Security Corps even though some critical assets are protected by the Garuds.

Integrated Space Cell
An Integrated Space Cell, which will be jointly operated by all the three services of the Indian armed forces, the civilian Department of Space and the Indian Space Research Organisation (ISRO) has been set up to utilise more effectively the country's space-based assets for military purposes. This command will leverage space technology including satellites. Unlike an aerospace command, where the air force controls most of its activities, the Integrated Space Cell envisages co-operation and co-ordination between the three services as well as civilian agencies dealing with space.

India currently has 10 remote sensing satellites in orbit. Though most are not meant to be dedicated military satellites, some have a spatial resolution of 1 m or below which can be also used for military applications. Noteworthy satellites include the Technology Experiment Satellite (TES) which has a panchromatic camera (PAN) with a resolution of 1 m, the RISAT-2 which is capable of imaging in all-weather conditions and has a resolution of 1 m, the CARTOSAT-2, CARTOSAT-2A and CARTOSAT-2B which carries a panchromatic camera which has a resolution of 800 mm (black and white only). The Integrated Space Cell was superseded by the Defence Space Agency in 2019.

Display teams
The Surya Kiran Aerobatic Team (SKAT) (Surya Kiran is Sanskrit for Sun Rays) is an aerobatics demonstration team of the Indian Air Force. They were formed in 1996 and are successors to the Thunderbolts. The team has a total of 13 pilots (selected from the fighter stream of the IAF) and operate 9 Bae Hawk mk.132 painted in a "day-glo orange" and white colour scheme. The Surya Kiran team were conferred squadron status in 2006, and presently have the designation of 52 Squadron ("The Sharks"). The team is based at the Indian Air Force Station at Bidar. The team earlier used to fly HAL HJT-16 Kiran.

Sarang (Sanskrit for Peacock) is the Helicopter Display Team of the Indian Air Force. The team was formed in October 2003 and their first public performance was at the Asian Aerospace Show, Singapore, 2004. The team earlier used to fly four HAL Dhruvs but that was upgraded to five on the 91st Air Force day held in Prayagraj. The choppers are painted in red and white with a peacock figure at each side of the fuselage. The team is based at the Sulur Air Force Station, Coimbatore.

Personnel

Over the years reliable sources provided notably divergent estimates of the personnel strength of the Indian Air Force after analysing open-source intelligence. In 2006, Anthony Cordesman estimated that strength to be 170,000 in the International Institute for Strategic Studies (IISS) publication "The Asian Conventional Military Balance in 2006". In 2010, James Hackett revised that estimate to an approximate strength of 127,000 active personnel in the IISS publication "Military Balance 2010".

, the Indian Air Force has a sanctioned strength of 12,550 officers (12,404 serving with 146 under strength), and 142,529 airmen (127,172 serving with 15,357 under strength).

Rank structure
The rank structure of the Indian Air Force is based on that of the Royal Air Force. The highest rank attainable in the IAF is Marshal of the Indian Air Force, conferred by the President of India after exceptional service during wartime. MIAF Arjan Singh is the only officer to have achieved this rank. The head of the Indian Air Force is the Chief of the Air Staff, who holds the rank of Air Chief Marshal.

Officers
Anyone holding Indian citizenship can apply to be an officer in the Air Force as long as they satisfy the eligibility criteria. There are four entry points to become an officer. Male applicants, who are between the ages of 16$1⁄2$ and 19 and have passed high school graduation, can apply at the Intermediate level. Men and women applicants, who have graduated from college (three-year course) and are between the ages of 18 and 28, can apply at the Graduate level entry. Graduates of engineering colleges can apply at the Engineer level if they are between the ages of 18 and 28 years. The age limit for the flying and ground duty branch is 23 years of age and for technical branch is 28 years of age. After completing a master's degree, men and women between the ages of 18 and 28 years can apply at the Post Graduate level. Post graduate applicants do not qualify for the flying branch. For the technical branch the age limit is 28 years and for the ground duty branch it is 25. At the time of application, all applicants below 25 years of age must be single. The IAF selects candidates for officer training from these applicants. After completion of training, a candidate is commissioned as a Flying Officer.

In May 2022 Abhilasha Barak became the first ever woman combat aviator in the Indian Army

Airmen
The duty of an airman is to make sure that all the air and ground operations run smoothly. From operating Air Defence systems to fitting missiles, they are involved in all activities of an air base and give support to various technical and non-technical jobs. The airmen of Technical trades are responsible for maintenance, repair and prepare for use the propulsion system of aircraft and other airborne weapon delivery system, Radar, Voice/Data transmission and reception equipment, latest airborne weapon delivery systems, all types of light, mechanical, hydraulic, pneumatic systems of airborne missiles, aero engines, aircraft fuelling equipment and heavy duty mechanical vehicles, cranes and loading equipment etc. The competent and qualified Airmen from Technical trades also participate in flying as Flight Engineers, Flight Signallers and Flight Gunners. The recruitment of personnel below officer rank is conducted through All India Selection Tests and Recruitment Rallies. All India Selection Tests are conducted among 15 Airmen Selection Centres (ASCs) located all over India. These centres are under the direct functional control of Central Airmen Selection Board (CASB), with administrative control and support by respective commands. The role of CASB is to carry out selection and enrolment of airmen from the Airmen Selection Centres for their respective commands. Candidates initially take a written test at the time of application. Those passing the written test undergo a physical fitness test, an interview conducted in English, and medical examination. Candidates for training are selected from individuals passing the battery of tests, on the basis of their performance. Upon completion of training, an individual becomes an Airman. Some MWOs and WOs are granted honorary commission in the last year of their service as an honorary Flying Officer or Flight Lieutenant before retiring from the service.

Honorary officers
Sachin Tendulkar was the first sportsperson and the first civilian without an aviation background to be awarded the honorary rank of group captain by the Indian Air Force.

Non combatants enrolled and civilians
Non combatants enrolled (NCs(E)) were established in British India as personal assistants to the officer class, and are equivalent to the orderly or sahayak of the Indian Army.

Almost all the commands have some percentage of civilian strength which are central government employees. These are regular ranks which are prevalent in ministries. They are usually not posted outside their stations and are employed in administrative and non-technical work.

Training and education
The Indian Armed Forces have set up numerous military academies across India for training its personnel, such as the National Defence Academy (NDA). Besides the tri-service institutions, the Indian Air Force has a Training Command and several training establishments. While technical and other support staff are trained at various Ground Training Schools, the pilots are trained at the Air Force Academy, Dundigul (located in Hyderabad). The Pilot Training Establishment at Allahabad, the Air Force Administrative College at Coimbatore, the Institute of Aerospace Medicine at Bangalore, the Air Force Technical College, Bangalore at Jalahalli, the Tactics and Air Combat and Defence Establishment at Gwalior, and the Paratrooper's Training School at Agra are some of the other training establishments of the IAF.

Aircraft inventory
The Indian Air Force has aircraft and equipment of Russian (erstwhile Soviet Union), British, French, Israeli, US and Indian origins with Russian aircraft dominating its inventory. HAL produces some of the Russian and British aircraft in India under licence. The exact number of aircraft in service with the Indian Air Force cannot be determined with precision from open sources. Various reliable sources provide notably divergent estimates for a variety of high-visibility aircraft. Flight International estimates there to be around 1,750 aircraft in service with the IAF, while the International Institute for Strategic Studies provides a similar estimate of 1,850 aircraft. Both sources agree there are approximately 900 combat capable (fighter, attack etc.) aircraft in the IAF.

Multi-role fighters and strike aircraft

 * Dassault Rafale: the latest addition to India's aircraft arsenal; India has signed a deal for 36 Dassault Rafale multirole fighter aircraft. As of June 2022, 36 Rafale fighters are in service with the Indian Air Force.
 * Sukhoi Su-30MKI: the IAF's primary air superiority fighter, with additional air-to-ground (strike) mission capability, is the Sukhoi Su-30MKI. 260 Su-30MKIs are in service.
 * Mikoyan MiG-29: the MiG-29, known as Baaz (Hindi for Hawk), is a dedicated air superiority fighter, constituting the IAF's second line of defence after the Su-30MKI. There are 69 MiG-29s in service, all of which have been recently upgraded to the MiG-29UPG standard, after the decision was made in 2016 to upgrade the remaining 21 MiG-29s to the UPG standard.
 * Dassault Mirage 2000: the Mirage 2000, known as Vajra (Sanskrit for diamond or thunderbolt) in Indian service. The IAF currently operates 49 Mirage 2000Hs and 8 Mirage 2000 TH all of which are currently being upgraded to the Mirage 2000-5 MK2 standard with Indian specific modifications and 2 Mirage 2000-5 MK2 are in service . The IAF's Mirage 2000 were scheduled to be phased out by 2030.
 * HAL Tejas: IAF MiG-21s are to be replaced by domestically built HAL Tejas. The first Tejas IAF unit, No. 45 Squadron IAF Flying Daggers, was formed on 1 July 2016, followed by No. 18 Squadron IAF "Flying Bullets" on 27 May 2020. Initially stationed at Bangalore, the first squadron was then to be transferred to its home base in Sulur, Tamil Nadu.  In February 2021, the Indian Air Force ordered 83 Tejas, including 40 Mark 1, 73 single-seat Mark 1As and 10 two-seat Mark 1 trainers. Total 123 ordered.
 * SEPECAT Jaguar: the Jaguar, known as the Shamsher, serves as the IAF's primary ground attack force. The IAF currently operates 139 Jaguars. The first batch of DARIN-1 Jaguars are now going through a DARIN-3 upgrade being equipped with EL/M-2052 AESA radars, and an improved jamming suite plus new avionics. These aircraft are scheduled to be phased out by 2030.
 * Mikoyan-Gurevich MiG-21: the MiG-21 serves as an interceptor aircraft in the IAF, which phased out most of its MiG-21s and planned to keep only the 125 aircraft upgraded to the MiG-21 Bison standard. The phase-out date for these interceptors has been postponed several times. Initially set for 2014–2017, it was later postponed to 2019. Current phase-out was scheduled for 2021–2022.

Airborne early warning and control system
The IAF operates three Netra Embraer ERJ 145I aircraft. The IAF also operates the EL/W-2090 Phalcon AEW&C incorporated in a Beriev A-50 platform. A total of three such systems are currently in service, with two further potential orders. India is also investing in a DRDO project to develop six new Airborne AEW&C aircraft, as an upgrade to the Netra systems.

Aerial refuelling
The IAF currently operates six Ilyushin Il-78MKIs in the aerial refueling (tanker) role.

Transport aircraft

For strategic airlift operations, the IAF uses the Ilyushin Il-76, known as Gajraj (Hindi for King Elephant) in Indian service. The IAF operated 17 Il-76s in 2010, which are in the process of being replaced by C-17 Globemaster IIIs.

IAF C-130Js are used by special forces for combined Army-Air Force operations. India purchased six C-130Js; however, one crashed at Gwalior on 28 March 2014 while on a training mission, killing all 5 on board and destroying the aircraft. The Antonov An-32, known in Indian service as the Sutlej (named after Sutlej River), serves as a medium transport aircraft in the IAF. The aircraft is also used in bombing roles and paradropping operations. The IAF currently operates 105 An-32s, all of which are being upgraded. The IAF operates 53  Dornier 228 to fulfil its light transport duties. The IAF also operates Boeing 737s and Embraer ECJ-135 Legacy aircraft as VIP transports and passenger airliners for troops. 2 specially modified Boeing 777 are used for both the Indian President and Prime Minister under the call sign Air India One.

The Hawker Siddeley HS 748 once formed the backbone of the IAF's transport fleet, but are now used mainly for training and communication duties. A replacement is under consideration.

Trainer aircraft
The HAL HPT-32 Deepak is IAF's basic flight training aircraft for cadets. The HPT-32 was grounded in July 2009 following a crash that killed two senior flight instructors, but was revived in May 2010 and is to be fitted with a parachute recovery system (PRS) to enhance survivability during an emergency in the air and to bring the trainer down safely. The HPT-32 is to be phased out soon. initially by 75 trainers Pilatus aircraft, and followed by 70 HTT-40 trainers. 36 more HTT-40s to be ordered once fleet is operational. The IAF uses the HAL HJT-16 Kiran mk.I for intermediate flight training of cadets, while the HJT-16 Kiran mk.II provides advanced flight and weapons training. The HAL HJT-16 Kiran Mk.2 is also operated by the Surya Kiran Aerobatic Team (SKAT) of the IAF. The Kiran is to be replaced by the HAL HJT-36 Sitara. The BAE Hawk Mk 132 serves as an advanced jet trainer in the IAF and is progressively replacing the Kiran Mk.II. The IAF has begun the process of converting the Surya Kiran display team to Hawks. A total of 106 BAE Hawk trainers have been ordered by the IAF of which 39 have entered service. IAF also ordered 72 Pipistrel Virus SW 80 microlight aircraft for basic training purpose.

Helicopters
The HAL Dhruv serves primarily as a light utility helicopter in the IAF. In addition to transport and utility roles, newer Dhruvs are also used as attack helicopters. Four Dhruvs are also operated by the Indian Air Force Sarang Helicopter Display Team. The HAL Chetak is a light utility helicopter and is used primarily for training, rescue and light transport roles in the IAF. The HAL Chetak is being gradually replaced by HAL Dhruv. The HAL Cheetah is a light utility helicopter used for high altitude operations. It is used for both transport and search-and-rescue missions in the IAF.

The Mil Mi-8 and the Mil Mi-17, Mi-17 1V and Mi-17V 5 are operated by the IAF for medium lift strategic and utility roles. The Mi-8 is being progressively replaced by the Mi-17 series of helicopters. The IAF has ordered 22 Boeing AH-64E Apache attack helicopters, 68 HAL Light Combat Helicopters (LCH), 35 HAL Rudra attack helicopters, 15 CH-47F Chinook heavy lift helicopters and 150 Mi-17V-5s to replace and augment its existing fleet of Mi-8s, Mi-17s, and Mi-24s. The Mil Mi-26 serves as a heavy lift helicopter in the IAF. It can also be used to transport troops or as a flying ambulance. The IAF currently operates three Mi-26s.

The Mil Mi-35 serves primarily as an attack helicopter in the IAF. The Mil Mi-35 can also act as a low-capacity troop transport. The IAF currently operates two squadrons (No. 104 Firebirds and No. 125 Gladiators) of Mi-25/35s.

Unmanned Aerial Vehicles
The IAF currently uses the IAI Searcher II and IAI Heron for reconnaissance and surveillance purposes. The IAI Harpy serves as an Unmanned Combat Aerial Vehicle (UCAV) which is designed to attack radar systems. The IAF also operates the DRDO Lakshya which serves as realistic towed aerial sub-targets for live fire training.

Future
The number of aircraft in the IAF has been decreasing from the late 1990s due to the retirement of older aircraft and several crashes. To deal with the depletion of force levels, the IAF has started to modernize its fleet. This includes both the upgrade of existing aircraft, equipment and infrastructure as well as induction of new aircraft and equipment, both indigenous and imported. As new aircraft enter service and numbers recover, the IAF plans to have a fleet of 42 squadrons.

Renaming
IAF has sent a proposal to rename itself as Indian Air and Space Force (IASF). It has declared this as a part of its current drive to become a credible space power.

Single-engined fighter
On 3 January 2017, Minister of Defence Manohar Parrikar addressed a media conference and announced plans for a competition to select a Strategic Partner to deliver "... 200 new single engine fighters to be made in India, which will easily cost around (USD)$45 million apiece without weaponry" with an expectation that Lockheed Martin (USA) and Saab (Sweden) will pitch the F-16 Block 70 and Gripen, respectively. An MoD official said that a global tender will be put to market in the first quarter of 2018, with a private company nominated as the strategic partners production agency followed by a two or more year process to evaluate technical and financial bids and conduct trials, before the final government-to-government deal in 2021. This represents 11 squadrons of aircraft plus several 'attrition' aircraft. India is also planning to set up an assembly line of American Lockheed Martin F-16 Fighting Falcon Block 70 in Bengaluru. It is not yet confirmed whether IAF will induct these aircraft or not.

In 2018, the defence minister Nirmala Sitharaman gave the go ahead to scale up the manufacturing of Tejas at HAL and also to export Tejas. She is quoted saying "We are not ditching the LCA. We have not gone for anything instead of Tejas. We are very confident that Tejas Mark II will be a big leap forward to fulfil the single engine fighter requirement of the forces.". IAF committed to buy 201 Mark-II variant of the Tejas taking the total order of Tejas to 324. The government also scrapped the plan to import single engine fighters leading to reduction in reliance on imports thereby strengthening the domestic defence industry.

The IAF also submitted a request for information to international suppliers for a stealth unmanned combat air vehicle (UCAV).

Current acquisitions
IAF's current orders include

 * HAL Tejas - 73 Mk 1A on order, 17 trainers on order. 97 more cleared for order.
 * HAL HTT-40: 70 on order
 * HAL Prachand: 66 cleared
 * HAL Light Utility Helicopter (LUH): 6 on order
 * EADS CASA C-295: 55 on order
 * IAI Harop UCAVs
 * General Atomic MQ-9B Predator: 8 planned

DRDO and HAL projects
Indian defence company HAL and Defense Research Organization DRDO are developing several aircraft for the IAF including:-

 * HAL Tejas Mk 2
 * HAL AMCA (5th generation aircraft)
 * NAL Saras
 * HAL HJT-36 Sitara
 * DRDO Rustom
 * TAPAS-BH-201
 * DRDO Ghatak UCAV.
 * HAL CATS: DRDO and HAL has also engaged in the unmanned combat system. According to this, HAL will develop the whole family of unmanned aircraft by the end of 2024–25
 * Akash-NG is also being developed by DRDO which will be the same range of Barak 8.
 * DRDO has now successfully developed the nuclear capable Nirbhay cruise missile.

Network-centric warfare
The Air Force Network (AFNET), a robust digital information grid that enabled quick and accurate threat responses, was launched in 2010, helping the IAF become a truly network-centric air force. AFNET is a secure communication network linking command and control centres with offensive aircraft, sensor platforms and ground missile batteries. Integrated Air Command and Control System (IACCS), an automated system for Air Defence operations will ride the AFNet backbone integrating ground and airborne sensors, weapon systems and command and control nodes. Subsequent integration with civil radar and other networks shall provide an integrated Air Situation Picture, and reportedly acts as a force multiplier for intelligence analysis, mission control, and support activities like maintenance and logistics. The design features multiple layers of security measures, including encryption and intrusion prevention technologies, to hinder and deter espionage efforts.

Media
In the year 2005, the National Geographic Channel created a 10 part documentary series detailing out all the branches of the Indian Air Force. It was titled Mission Udaan - Inside the Indian Air Force

title: Indian Air Force


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Path (computing)

A path (or filepath, file path, pathname, or similar) is a string of characters used to uniquely identify a location in a directory structure. It is composed by following the directory tree hierarchy in which components, separated by a delimiting character, represent each directory. The delimiting character is most commonly the slash ("/"), the backslash character ("\"), or colon (":"), though some operating systems may use a different delimiter. Paths are used extensively in computer science to represent the directory/file relationships common in modern operating systems and are essential in the construction of Uniform Resource Locators (URLs). Resources can be represented by either absolute or relative paths.

History
Multics first introduced a hierarchical file system with directories (separated by ">") in the mid-1960s.

Around 1970, Unix introduced the slash character ("/") as its directory separator.

In 1981, the first version of Microsoft DOS was released. MS-DOS 1.0 did not support file directories. Also, a major portion of the utility commands packaged with MS-DOS 1.0 came from IBM and their command line syntax used the slash character as a 'switch' prefix. For example,  runs the   command with the wide list format option.

This use of slash can still be found in the command interface under Microsoft Windows. By contrast, Unix uses the dash ("-") character as a command-line switch prefix.

When directory support was added to MS-DOS in version 2.0, "/" was kept as the switch prefix character for backwards compatibility. Microsoft chose the backslash character ("\") as a directory separator, which looks similar to the slash character, though more modern version of Windows are slash-agnostic, allowing mixing of both types of slash in a path.

Absolute and relative paths
An absolute or full path points to the same location in a file system, regardless of the current working directory. To do that, it must include the root directory.

By contrast, a relative path starts from some given working directory, avoiding the need to provide the full absolute path. A filename can be considered as a relative path based at the current working directory. If the working directory is not the file's parent directory, a file not found error will result if the file is addressed by its name.

Base URL
A base URL is the consistent part of an API path, to which endpoint paths are appended.

Representations of paths by operating system and shell
Japanese and Korean versions of Windows may often display the '¥' character or the '₩' character instead of the directory separator. In such cases the code for a backslash is being drawn as these characters. Very early versions of MS-DOS replaced the backslash with these glyphs on the display to make it possible to display them by programs that only understood 7-bit ASCII (other characters such as the square brackets were replaced as well, see ISO 646, Windows Codepage 932 (Japanese Shift JIS), and Codepage 949 (Korean)). Although even the first version of Windows supported the 8-bit ISO-8859-1 character set which has the Yen sign at U+00A5, and modern versions of Windows supports Unicode which has the Won sign at U+20A9, much software will continue to display backslashes found in ASCII files this way to preserve backwards compatibility.

Mac OS X, as a derivative of UNIX, uses UNIX paths internally. However, to preserve compatibility for software and familiarity for users, many portions of the GUI switch "/" typed by the user to ":" internally, and switch them back when displaying filenames (a ":" entered by the user is also changed into "/" but the inverse translation does not happen).

Paths in programming languages
Programming languages also use paths. E.g.: When a file is opened. Most programming languages use the path representation of the underlying operating system:

This direct access to the operating system paths can hinder the portability of programs. To support portable programs Java uses File.separator to distinguish between / and \ separated paths. Seed7 has a different approach for the path representation. In Seed7 all paths use the Unix path convention, independent of the operating system. Under windows a mapping takes place (e.g.: The path /c/users is mapped to c:\users).

Universal Naming Convention
The Microsoft Windows UNC, short for Universal Naming Convention or Uniform Naming Convention, specifies a common syntax to describe the location of a network resource, such as a shared file, directory, or printer. The UNC syntax for Windows systems has the generic form:

\\ComputerName\SharedFolder\Resource

Microsoft often refers to this as a "network path".

Some Microsoft Windows interfaces also allow or require UNC syntax for WebDAV share access, rather than a URL. The UNC syntax is extended with optional components to denote use of SSL and TCP/IP port number, a WebDAV URL of  becomes

\\HostName[@SSL][@Port]\SharedFolder\Resource

When viewed remotely, the "SharedFolder" may have a name different from what a program on the server sees when opening "\SharedFolder". Instead, the SharedFolder name consists of an arbitrary name assigned to the folder when defining its "sharing".

Some Microsoft Windows interfaces also accept the "Long UNC":

\\?\UNC\ComputerName\SharedFolder\Resource

Microsoft Windows uses the following types of paths:

 * local file system (LFS), such as
 * universal naming convention (UNC), such as  or /  (at least in Windows 7 and later)
 * "long" device path such as  or  . This path points to the local file namespace and \\.\ is a similar one that points to the local DOS device namespace. This format is also the "raw" or "uninterpreted" path, since it sends paths straight to the file system without converting  to  and interpreting names like.
 * Windows NT object manager -prefixed paths (global DOS namespace).

In versions of Windows prior to Windows XP, only the APIs that accept "long" device paths could accept more than 260 characters.

The shell in Windows XP and Windows Vista, explorer.exe, allows path names up to 248 characters long.

Since UNCs start with two backslashes, and the backslash is also used for string escaping and in regular expressions, this can result in extreme cases of leaning toothpick syndrome: an escaped string for a regular expression matching a UNC begins with 8 backslashes –  – because the string and regular expression both require escaping. This can be simplified by using raw strings, as in C#'s  or Python's , or regular expression literals, as in Perl's.

POSIX pathname definition
Most Unix-like systems use a similar syntax. POSIX allows treating a path beginning with two slashes in an implementation-defined manner, though in other cases systems must treat multiple slashes as single slashes. Many applications on Unix-like systems (for example, scp, rcp and rsync) use resource definitions such as:

hostname:/directorypath/resource

or URI schemes with the service name (here 'smb'):

smb://hostname/directorypath/resource

Unix style
The following worked example discusses the behavior of a Unix-style file system as it would appear from a terminal or terminal application (command-line window):

Attached to a current working directory (cwd) of: /users/mark/

One wants to change the current working directory to: /users/mark/bobapples

At that moment, the relative path for the desired directory can be represented as: ./bobapples

or for short: bobapples

and the absolute path for the directory as: /users/mark/bobapples

Given bobapples as the relative path for the directory wanted, the following may be typed at the command prompt to change the current working directory to bobapples: cd bobapples

Two dots ("..") point upwards in the hierarchy, to indicate the parent directory; one dot (".") represents the current directory itself. Both can be components of a complex relative path (e.g., "../mark/./bobapples"), where "." alone or as the first component of such a relative path represents the working directory. (Using "./foo" to refer to a file "foo" in the current working directory can sometimes usefully distinguish it from a resource "foo" to be found in a default directory or by other means; for example, to view a specific version of a manual page instead of the one installed in the system.)

MS-DOS/Microsoft Windows style
Contrary to popular belief, the Windows system API accepts slash, and thus all the above Unix examples should work. But many applications on Windows interpret a slash for other purposes or treat it as an invalid character, and thus require you to enter backslash – notably the cmd.exe shell (often called the "terminal" as it typically runs in a terminal window). Note that many other shells available for Windows, such as tcsh and Windows PowerShell, allow the slash.

In addition "\" does not indicate a single root, but instead the root of the "current disk". Indicating a file on a disk other than the current one requires prefixing a drive letter and colon. No ambiguity ensues, because colon is not a valid character in an MS-DOS filename, and thus one cannot have a file called "A:" in the current directory.

UNC names (any path starting with \\?\) do not support slashes.

The following examples show MS-DOS/Windows-style paths, with backslashes used to match the most common syntax:

A:\Temp\File.txt

This path points to a file with the name File.txt, located in the directory Temp, which in turn is located in the root directory of the drive A:.

C:..\File.txt

This path refers to a file called File.txt located in the parent directory of the current directory on drive C:.

Folder\SubFolder\File.txt

This path denotes a file called File.txt located in SubFolder directory which in turn is located in Folder directory which is located in the current directory of the current drive (since this example gives no drive-specification).

File.txt

This rather simple path points to a file named  located in the current directory (since the path lacks a directory-specification) on the current drive (since no drive specification is present).

\\.\COM1

This path refers to the first serial port (COM1). This example uses a path containing slashes as directory separator. The command redirects the content of the file to the  command. A path containing forward slashes often needs to be surrounded by double quotes to disambiguate it from command-line switches.

 * note: CD does not work this way:

CD "[drive letter]:/Program Files" will only work from the root ([drive letter]:\) directory. This appears to treat all forward slashes the same as .\.

 * exception: Use the /D switch to change current drive in addition to changing current directory for a drive.

For example:

CD "C:.\Program Files" works the same as CD "C:/Program Files"

Also, from a root folder:

CD "C:.\Program Files.\Internet Explorer" would be treated the same as CD "C:/Program Files/Internet Explorer"

If there is no relative path to the directory name specified with forward slashes you will get the following error:

The system cannot find the path specified.

For setting environment variables, it is sometimes necessary to provide a path that does not contain spaces in it, for instance %JAVA_HOME% defined as "C:\Program Files\Java..." can cause scripts to halt when they encounter the space in the path name. To get the eight-character name Windows assigns to any directory for substitution in environment variables, use the directory listing command with the /x option one level up from the target directory. For instance, the following will get you the eight character name for all directories directly under root:

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

title: Path (computing)


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Kyōbashi Station (Osaka)

Kyobashi Station (京橋駅) is a railway station in the Kyōbashi district of Jōtō-ku and Miyakojima-ku, Osaka, Japan, jointly operated by West Japan Railway Company (JR West), the private railway operator Keihan Railway, and the Osaka Metro.

Lines
Osaka Loop Line
 * JR West:

Gakkentoshi Line (Katamachi Line)

JR Tōzai Line

The Tōzai and Gakkentoshi Lines form a combined service line in practice.

 * Keihan Railway (KH04):
 * Number prefix Keihan lines.svg Keihan Main Line

 * Osaka Metro:
 * (N22)

JR West
, Kyobashi was the fourth-busiest station in the JR West network after Osaka Station, Kyoto Station and Tennoji Station.

Gakkentoshi Line (Katamachi Line) and JR Tōzai Line
There are an island platform and a side platform with two tracks at ground level.

Osaka Loop Line
There are two side platforms with two elevated tracks.

History
The station opened on 17 October 1895.

During the bombing of Osaka on August 14, 1945, a one-ton bomb directly struck the Katamachi Line platform and killed 700 to 800 evacuees. Kyobashi was one of the last sites to be bombed in Japan during World War II, followed only by the bombing of Akita, later the same day. A memorial was erected on the site in 1947, and anniversary services have been held at the station every year since 1955.

With the privatization of Japanese National Railways (JNR) on 1 April 1987, the station came under the control of JR West.

The JR Tozai Line opened in 1997, at which point Kyobashi became a terminal for both the Tozai Line and Katamachi Line.

Station numbering was introduced on the JR West lines in March 2018 with the Osaka Loop Line being assigned station number JR-O08 and the Tozai Line being assigned station number JR-H41.

Keihan Railway
Kyobashi is the busiest station in the Keihan network.

This station is the transfer station between the Keihan Line and the Nakanoshima Line. The connections are follows:
 * eastbound: trains from Nakanoshima ←→ trains from Yodoyabashi
 * westbound: trains for Nakanoshima ←→ trains for Yodoyabashi

Layout
Two island platforms on the 4th level serve four tracks.

History
The Keihan terminal opened on 15 April 1910, originally named Gamō Station (蒲生駅). It was renamed Kyōbashi on 1 October 1949, and was rebuilt as an elevated station, completed on 15 April 1970.

Osaka Metro
The Osaka Metro Subway station opened on 20 March 1990 when the Tsurumi-Ryokuchi Line was extended between Kyobashi and Tsurumi-ryokuchi Station.

Layout
An island platform on the 3rd basement fenced with platform gates serves two tracks.

Surrounding area

 * Keihan Mall
 * KiKi Kyobashi
 * Kyobashi Guranshato Building
 * COMS Garden
 * Miyakojima Ward office
 * Osaka Business Park
 * National Route 1

Buses
Bus services are operated by Osaka City Bus and Kintetsu Bus.

title: Kyōbashi Station (Osaka)


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Colliston Castle

Colliston Castle is a 16th-century Z-plan tower house, altered and extended in the 18th and 19th centuries. It is located 6 km north of Arbroath, in Angus, Scotland, and remains occupied.

History
Colliston was part of the lands of Arbroath Abbey from its foundation in the 12th century. On 25 July 1544, David Beaton, Abbot of Arbroath and Archbishop of St Andrews, granted the lands of Colliston, Knives, Park of Conon, and Guthrie Hill, to John Guthrie and his wife Isobel Ogilvie. Colliston was retained by the Guthries until the late 17th century, when it passed to the Gordon family. By 1820 George Chaplin was in possession of Colliston, and was succeeded by his nephew George Robertson Chaplin of Auchengray, and then George Chaplin Child Chaplin, M.D. He died in 1883, and was succeeded by Mr Peebles of Somerset House, London. It was purchased in 1920 by Major R.F.D. Bruce, whose wife continued to live there after his death. It was sold several times during the 20th century, and most recently in 2011. The house is currently available for holiday rentals. It is a category B listed building.

Description
The original Z-plan part of the castle of Colliston bears the date 1583 (sometimes misread as 1553). It consists of a main block with two round towers projecting at opposite corners, and a stair turret rising in one of the re-entrant angles between the main block and tower. This tower, which also houses the entrance to the castle, is corbelled out at the top to form a gabled watch-chamber. The plan is similar to Claypotts Castle and is amply provided with wide splayed gun-loops and circular shot-holes for defence. The wall heads and the entire upper storey were remodelled several times and are not original. A later doorway is dated 1621, and the north and east wings were added in the 18th and 19th centuries.

title: Colliston Castle


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Radeon

Radeon is a brand of computer products, including graphics processing units, random-access memory, RAM disk software, and solid-state drives, produced by Radeon Technologies Group, a division of AMD. The brand was launched in 2000 by ATI Technologies, which was acquired by AMD in 2006 for US$5.4 billion.

Radeon Graphics
Radeon Graphics is the successor to the Rage line. Four different families of microarchitectures can be roughly distinguished, the fixed-pipeline family, the unified shader model-families of TeraScale, Graphics Core Next, and RDNA. ATI/AMD have developed different technologies, such as TruForm, HyperMemory, HyperZ, XGP, Eyefinity for multi-monitor setups, PowerPlay for power-saving, CrossFire (for multi-GPU) or Hybrid Graphics. A range of SIP blocks is also to be found on certain models in the Radeon products line: Unified Video Decoder, Video Coding Engine and TrueAudio.

The brand was previously only known as "ATI Radeon" until August 2010, when it was renamed to increase AMD's brand awareness on a global scale. Products up to and including the HD 5000 series are branded as ATI Radeon, while the HD 6000 series and beyond use the new AMD Radeon branding.

On 11 September 2015, AMD's GPU business was split into a separate unit known as Radeon Technologies Group, with Raja Koduri as Senior Vice President and chief architect.

Radeon Graphics card brands
AMD does not distribute Radeon cards directly to consumers (though some exceptions can be found). Instead, it sells Radeon GPUs to third-party manufacturers, who build and sell the Radeon-based video cards to the OEM and retail channels. Manufacturers of the Radeon cards—some of whom also make motherboards—include ASRock, Asus, Biostar, Club 3D, Diamond, Force3D, Gainward, Gigabyte, HIS, MSI, PowerColor, Sapphire, VisionTek, and XFX.

Graphics processor generations
Early generations were identified with a number and major/minor alphabetic prefix. Later generations were assigned code names. New or heavily redesigned architectures have a prefix of R (e.g., R300 or R600) while slight modifications are indicated by the RV prefix (e.g., RV370 or RV635).

The first derivative architecture, RV200, did not follow the scheme used by later parts.

R100/RV200
The Radeon, first introduced in 2000, was ATI's first graphics processor to be fully DirectX 7 compliant. R100 brought with it large gains in bandwidth and fill-rate efficiency through the new HyperZ technology.

The RV200 was a die-shrink of the former R100 with some core logic tweaks for clockspeed, introduced in 2002. The only release in this generation was the Radeon 7500, which introduced little in the way of new features but offered substantial performance improvements over its predecessors.

R200
ATI's second generation Radeon included a sophisticated pixel shader architecture. This chipset implemented Microsoft's pixel shader 1.4 specification for the first time.

Its performance relative to competitors was widely perceived as weak, and subsequent revisions of this generation were cancelled in order to focus on development of the next generation.

R300/R350
The R300 was the first GPU to fully support Microsoft's DirectX 9.0 technology upon its release in 2001. It incorporated fully programmable pixel and vertex shaders.

About a year later, the architecture was revised to allow for higher frequencies, more efficient memory access, and several other improvements in the R350 family. A budget line of RV350 products was based on this refreshed design with some elements disabled or removed.

Models using the new PCI Express interface were introduced in 2004. Using 110-nm and 130-nm manufacturing technologies under the X300 and X600 names, respectively, the RV370 and RV380 graphics processors were used extensively by consumer PC manufacturers.

R420
While heavily based upon the previous generation, this line included extensions to the Shader Model 2 feature-set. Shader Model 2b, the specification ATI and Microsoft defined with this generation, offered somewhat more shader program flexibility.

R520
ATI's DirectX 9.0c series of graphics cards, with complete shader Model 3.0 support. Launched in October 2005, this series brought a number of enhancements including the floating point render target technology necessary for HDR rendering with anti-aliasing.

R600
ATI's first series of GPUs to replace the old fixed-pipeline and implement unified shader model. Subsequent revisions tuned the design for higher performance and energy efficiency, resulting in the ATI Mobility Radeon HD series for mobile computers.

R700
Based on the R600 architecture. Mostly a bolstered with many more stream processors, with improvements to power consumption and GDDR5 support for the high-end RV770 and RV740(HD4770) chips. It arrived in late June 2008. The HD 4850 and HD 4870 have 800 stream processors and GDDR3 and GDDR5 memory, respectively. The 4890 was a refresh of 4870 with the same amount of stream processors yet higher clock rates due to refinements. The 4870x2 has 1600 stream processors and GDDR5 memory on an effective 512-bit memory bus with 230.4 Gbit/s video memory bandwidth available.

Evergreen
The series was launched on 23 September 2009. It featured a 40 nm fabrication process for the entire product line (only the HD4770 (RV740) was built on this process previously), with more stream cores and compatibility with the next major version of the DirectX API, DirectX 11, which launched on 22 October 2009 along with Microsoft Windows 7. The Rxxx/RVxxx codename scheme was scrapped entirely. The initial launch consisted of only the 5870 and 5850 models. ATI released beta drivers that introduced full OpenGL 4.0 support on all variants of this series in March 2010.

Northern Islands
This is the first series to be marketed solely under the "AMD" brand. It features a 3rd generation 40 nm design, rebalancing the existing architecture with redesigned shaders to give it better performance. It was released first on 22 October 2010, in the form of the 6850 and 6870. 3D output is enabled with HDMI 1.4a and DisplayPort 1.2 outputs.

Southern Islands
"Southern Islands" was the first series to feature the new compute microarchitecture known as "Graphics Core Next"(GCN). GCN was used among the higher end cards, while the VLIW5 architecture utilized in the previous generation was used in the lower end, OEM products. However, the Radeon HD 7790 uses GCN 2, and was the first product in the series to be released by AMD on 9 January 2012.

Sea Islands
The "Sea Islands" were OEM rebadges of the 7000 series, with only three products, code named Oland, available for general retail. The series, just like the "Southern Islands", used a mixture of VLIW5 models and GCN models for its desktop products.

Volcanic Islands
"Volcanic Islands" GPUs were introduced with the AMD Radeon Rx 200 series, and were first released in late 2013. The Radeon Rx 200 line is mainly based on AMD's GCN architecture, with the lower end, OEM cards still using VLIW5. The majority of desktop products use GCN 1, while the R9 290x/290 & R7 260X/260 use GCN 2, and with only the R9 285 using the new GCN 3.

Caribbean Islands
GPUs codenamed "Caribbean Islands" were introduced with the AMD Radeon Rx 300 series, released in 2015. This series was the first to solely use GCN based models, ranging from GCN 1st to GCN 3rd Gen, including the GCN 3-based Fiji-architecture models named Fury X, Fury, Nano and the Radeon Pro Duo.

Arctic Islands
GPUs codenamed "Arctic Islands" were first introduced with the Radeon RX 400 series in June 2016 with the announcement of the RX 480. These cards were the first to use the new Polaris chips which implements GCN 4th Gen on the 14 nm fab process. The RX 500 series released in April 2017 also uses Polaris chips.

RDNA 1
On 27 May 2019, at COMPUTEX 2019, AMD announced the new 'RDNA' graphics micro-architecture, which is to succeed the Graphics Core Next micro-architecture. This is the basis for the Radeon RX 5700-series graphics cards, the first to be built under the codename 'Navi'. These cards feature GDDR6 SGRAM and support for PCI Express 4.0.

RDNA 2
On 5 March 2020, AMD publicly announced its plan to release a "refresh" of the RDNA micro-architecture. Dubbed as the RDNA 2 architecture, it was stated to succeed the first-gen RDNA micro-architecture and was initially scheduled for a release in Q4 2020. RDNA 2 was confirmed as the graphics microarchitecture featured in the Xbox Series X and Series S consoles from Microsoft, and PlayStation 5 from Sony, with proprietary tweaks and different GPU configurations in each systems' implementation.

AMD unveiled the Radeon RX 6000 series, its next-gen RDNA 2 graphics cards at an online event on 28 October 2020. The lineup consists of the RX 6800, RX 6800 XT and RX 6900 XT. The RX 6800 and 6800 XT launched on 18 November 2020, with the RX 6900 XT being released on 8 December 2020. Further variants including a Radeon RX 6700 (XT) series based on Navi 22, launched on 18 March 2021, a Radeon RX 6600(XT) series based on Navi 23, launched on 11 August 2021 (that is the 6600XT release date, the RX 6600 launched on 13 October 2021), and a Radeon RX 6500(XT), launched on 19 January 2022.

API overview
Some generations vary from their predecessors predominantly due to architectural improvements, while others were adapted primarily to new manufacturing processes with fewer functional changes. The table below summarizes the APIs supported in each Radeon generation (including pre-Radeon ATI GPUs). Also see AMD FireStream and AMD FirePro branded products.

AMD's proprietary graphics "Radeon Software" (Formerly Catalyst)
On 24 November 2015, AMD released a new version of their graphics driver following the formation of the Radeon Technologies Group (RTG) to provide extensive software support for their graphics cards. This driver, labelled Radeon Software Crimson Edition, overhauls the UI with Qt, resulting in better responsiveness from a design and system perspective. It includes a new interface featuring a game manager, clocking tools, and sections for different technologies.

Unofficial modifications such as Omega drivers and DNA drivers were available. These drivers typically consist of mixtures of various driver file versions with some registry variables altered and are advertised as offering superior performance or image quality. They are, of course, unsupported, and as such, are not guaranteed to function correctly. Some of them also provide modified system files for hardware enthusiasts to run specific graphics cards outside of their specifications.

On operating systems
Radeon Software is being developed for Microsoft Windows and Linux. , other operating systems are not officially supported. This may be different for the Radeon Pro brand, which is based on identical hardware but features OpenGL-certified graphics device drivers.

ATI previously offered driver updates for their retail and integrated Macintosh video cards and chipsets. ATI stopped support for Mac OS 9 after the Radeon R200 cards, making the last officially supported card the Radeon 9250. The Radeon R100 cards up to the Radeon 7200 can still be used with even older classic Mac OS versions such as System 7, although not all features are taken advantage of by the older operating system.

Ever since ATI's acquisition by AMD, ATI no longer supplies or supports drivers for classic Mac OS nor macOS. macOS drivers can be downloaded from Apple's support website, while classic Mac OS drivers can be obtained from 3rd party websites that host the older drivers for users to download. ATI used to provide a preference panel for use in macOS called ATI Displays which can be used both with retail and OEM versions of its cards. Though it gives more control over advanced features of the graphics chipset, ATI Displays has limited functionality compared to Catalyst for Windows or Linux.

Third-party free and open-source "Radeon"
The free and open-source for Direct Rendering Infrastructure has been under constant development by the Linux kernel developers, by 3rd party programming enthusiasts and by AMD employees. It is composed out of five parts:

 * 1) Linux kernel component DRM
 * 2) * this part received dynamic re-clocking support in Linux kernel version 3.12 and its performance has become comparable to that of AMD Catalyst
 * 3) Linux kernel component KMS driver: basically the device driver for the display controller
 * 4) user-space component libDRM
 * 5) user-space component in Mesa 3D; currently most of these components are written conforming to the Gallium3D-specifications.
 * 6) * all drivers in Mesa 3D with Version 10.x (last 10.6.7) are as of September 2014 limited to OpenGL version 3.3 and OpenGL ES 3.0.
 * 7) * all drivers in Mesa 3D with Version 11.x (last 11.2.2) are as of Mai 2016 limited to OpenGL version 4.1 and OpenGL ES 3.0 or 3.1 (11.2+).
 * 8) * all drivers in Mesa 3D with version 12.x (in June 2016) can support OpenGL version 4.3.
 * 9) * all drivers in Mesa 3D with Version 13.0.x ( in November 2016) can support OpenGL 4.4 and unofficial 4.5.
 * 10) * all drivers in Mesa 3D with Version 17.0.x ( in January 2017) can support OpenGL 4.5 and OpenGL ES 3.2
 * 11) * Actual Hardware Support for different MESA versions see: glxinfo
 * 12) * AMD R600/700 since Mesa 10.1: OpenGL 3.3+, OpenGL ES 3.0+ (+: some more Features of higher Levels and Mesa Version)
 * 13) * AMD R800/900 (Evergreen, Northern Islands): OpenGL 4.1+ (Mesa 13.0+), OpenGL ES 3.0+ (Mesa 10.3+)
 * 14) * AMD GCN (Southern/Sea Islands and newer): OpenGL 4.5+ (Mesa 17.0+), OpenGL ES 3.2+ (Mesa 18.0+), Vulkan 1.0 (Mesa 17.0+), Vulkan 1.1 (GCN 2nd Gen+, Mesa 18.1+)
 * 15) a special and distinct 2D graphics device driver for X.Org Server, which is finally about to be replaced by Glamor
 * 16) OpenCL with GalliumCompute (previous Clover) is not full developed in 1.0, 1.1 and only parts of 1.2. Some OpenCL conformance tests were failed in 1.0 and 1.1, most in 1.2. ROCm is developed by AMD and Open Source. OpenCL 1.2 is full supported with OpenCL 2.0 language. Only CPU or GCN-Hardware with PCIe 3.0 is supported. So GCN 3rd Gen. or higher is here full usable for OpenCL 1.2 software.

Supported features
The free and open-source driver supports many of the features available in Radeon-branded cards and APUs, such as multi-monitor or hybrid graphics.

Linux
The free and open-source drivers are primarily developed on Linux and for Linux.

Other operating systems
Being entirely free and open-source software, the free and open-source drivers can be ported to any existing operating system. Whether they have been, and to what extent depends entirely on the man-power available. Available support shall be referenced here.

FreeBSD adopted DRI, and since Mesa 3D is not programmed for Linux, it should have identical support.

MorphOS supports 2D and 3D acceleration for Radeon R100, R200 and R300 chipsets.

AmigaOS 4 supports Radeon R100, R200, R300, R520 (X1000 series), R700 (HD 4000 series), HD 5000 (Evergreen) series, HD 6000 (Northern Islands) series and HD 7000 (Southern Islands) series. The RadeonHD AmigaOS 4 driver has been developed by Hans de Ruiter funded and owned by A-EON Technology Ltd. The older R100 and R200 "ATIRadeon" driver for AmigaOS, originally developed Forefront Technologies has been acquired by A-EON Technology Ltd in 2015.

In the past ATI provided hardware and technical documentation to the Haiku Project to produce drivers with full 2D and video in/out support on older Radeon chipsets (up to R500) for Haiku. A new Radeon HD driver was developed with the unofficial and indirect guidance of AMD open source engineers and currently exists in recent Haiku versions. The new Radeon HD driver supports native mode setting on R600 through Southern Islands GPU's.

Embedded GPU products
AMD (and its predecessor ATI) have released a series of embedded GPUs targeted toward medical, entertainment, and display devices.

Radeon Memory
In August 2011, AMD expanded the Radeon name to include random access memory modules under the AMD Memory line. The initial releases included 3 types of 2GiB DDR3 SDRAM modules: Entertainment (1333 MHz, CL9 9-9), UltraPro Gaming (1600 MHz, CL11 11-11) and Enterprise (specs to be determined).

On May 8, 2013, AMD announced the release of Radeon RG2133 Gamer Series Memory.

Radeon R9 2400 Gamer Series Memory was released on January 16, 2014.

Production
Dataram Corporation is manufacturing RAM for AMD.

Radeon RAMDisk
On September 6, 2012, Dataram Corporation announced it has entered into a formal agreement with AMD to develop an AMD-branded version of Dataram's RAMDisk software under the name Radeon RAMDisk, targeting gaming enthusiasts seeking exponential improvements in game load times leading to an enhanced gaming experience. The freeware version of Radeon RAMDisk software supports Windows Vista and later with minimum 4GiB memory, and supports maximum of 4GiB RAM disk (6GiB if AMD Radeon Value, Entertainment, Performance Edition or Products installed, and Radeon RAMDisk is activated between 2012-10-10 and 2013-10-10 ). Retail version supports RAM disk size between 5MiB to 64GiB.

Version history
Version 4.1 was released in May 8, 2013.

Production
In 2014-04-02, Dataram Corporation announced it has signed an Agreement with Elysium Europe Ltd. to expand sales penetration in Europe, the Middle East and Africa. Under this Agreement, Elysium is authorized to sell AMD Radeon RAMDisk software. Elysium is focusing on etailers, retailers, system builders and distributors.

Radeon SSD
AMD planned to enter solid state drive market with the introduction of R7 models powered by Indilinx Barefoot 3 controller and Toshiba 19 nm MLC flash memory, and initially available in 120G, 240G, 480G capacities. The R7 Series SSD was released on August 9, 2014, which included Toshiba's A19 MLC NAND flash memory, Indilinx Barefoot 3 M00 controller. These components are the same as in the SSD OCZ Vector 150 model.

title: Radeon


text:
Workers' Party (Algeria)

The Workers' Party (Arabic Hizb al-Ummal حزب العمال, Berber: Akabar Ixeddamen) is a Trotskyist political party in Algeria, closely linked with the Independent Workers' Party of France. The party is led by Louisa Hanoune.

The Workers' Party, which uses the abbreviation "PT", advocates for the protection and promotion of trade union movements in Algeria, from its claims, including a figure egalitarian doctrine is to claim that a better distribution of wealth on the people of country. The creation of this party back to the year 1990, one year after the constitutional reform which introduced a multiparty system. Its Secretary General is Louisa Hanoune, who in 2004 was the first woman in the Arab world to stand as a candidate for a presidential election.

The Workers' Party received 3.3 percent of the vote and elected 21 members to parliament in the 2002 legislative elections. In the 2004 presidential elections, Hanoune was the first woman in Algeria to run for the office. She received 101,630 votes (1 percent).

In the 2007 parliamentary elections it was the biggest opposition party, winning 5.08% of the vote and 26 seats out of 389. The three party coalition (National Liberation Front (FLN), National Rally for Democracy (RND) and Movement of Society for Peace) won 249 of the 389. Turnout was just 35%

In the 2007 regional and municipal elections, it won in over 1,000 elections winning 6.5% of the vote.

History
The Workers' Party was founded in 1990 by workers, trade unionists, peasants and youth at the initiative of the Socialist Workers Organization, on a platform of class struggle deriving from what it sees as the major contradiction between the interests of workers and "exploited classes", and "oppressed" and those of owners, "exploiters" and "oppressors". Louisa Hanoune has been its president since its inception.

The PT aims to provide workers with independent political representation.

The Workers' Party claims continuity with the Algerian national movement, in particular the North African Star and the Algerian People's Party. It is at odds with what it sees as "imperialism" embodied in the activities of the International Monetary Fund, the World Trade Organization, the World Bank, the European Union, the New Partnership for Africa's Development (NEPAD), etc. Part of the labor movement internationally, the Workers' Party wishes to achieve socialism.

The party is a member of the International Liaison Committee for a Workers' International.

The PT
The PT campaigns for the cancellation of external debt, the defense of nationalization of land, natural soil and subsoil, businesses and infrastructure (railways, water, electricity, ports, airports, cultural and artistic heritage, telecommunications, air and sea).

It favors the preservation of public enterprises against privatization and for the re-nationalization of public services and enterprises which have been privatized. It campaigns for the right to free and compulsory public education until the age of 16, and against private education. It campaigns for the prohibition of child labour, the right to public health care, for the right to housing.

It campaigns for a national development plan based around public works, funded by public investment and agrarian reform. The party opposes localism.

Ideology and Issues
The PT is a socialist party in the Trotskyist tradition. The party supports cancellation of international debts, favors compulsory education until the age of 16, and the nationalization of natural resources.

The Workers' Party calls for the election of a Constituent Assembly by direct universal suffrage and secret ballot.

In the immediate future the Workers' Party considers major issues to be:
 * The release of all political prisoners.
 * The resolution of the issue of missing persons.
 * The right to organize
 * The restoration of all democratic freedoms, including lifting the state of emergency and all emergency measures, the restoration of freedom of the press, and allowing for trade union activity.
 * Respect for the multiparty system.
 * The equal rights between women and men, which would entail the repeal of the Family Code and the enactment of civil laws giving full citizenship to women,
 * The recognition of Tamazight as an official language, and that it be taught in schools and used in public institutions.
 * The right to a permanent work for all those who live.
 * A sliding scale of wages and pensions, indexed for the cost of living.
 * The preservation of the social security system and retirement pay.
 * The right to collective bargaining.
 * The preservation of current positions within the public sector
 * Prohibition of any wages below the minimum wage.
 * The ratification of all ILO Conventions
 * The establishment of a minimum income for first job seekers and unemployment compensation for laid-off workers.

To achieve its objectives, the Workers Party is in favor of utilizing instruments of democracy, political action, and organized workers' groups.

title: Workers' Party (Algeria)