Minggu, 27 Desember 2009
Computers In 1940-1960 Photos | First Old Computers
Colossus Mark 1 - 1944
Whirlwind - 1951
The IBM 702 (photos) was announced September 25, 1953 and withdrawn October 1, 1954, but the first production model was not installed until July 1955. The successor to the 702 in the 700/7000 series was the IBM 705.
The system used electrostatic storage, consisting of 14, 28, 42, 56, or 70 Williams tubes with a capacity of 1000 bits each for the main memory, giving a memory of 2,000 to 10,000 characters of 7 bits each (in increments of 2,000 characters), and 14 Williams tubes with a capacity of 512 bits each for the two 512 character accumulators.
IBM NORC - 1954
The IBM Naval Ordnance Research Calculator (NORC) was a one-of-a-kind first-generation (vacuum tube) electronic computer built by IBM for the United States Navy's Bureau of Ordnance. It went into service in December 1954 and was likely the most powerful computer at the time. The NORC was the first supercomputer.
IBM 305 RAMAC - 1956
The IBM 305 RAMAC, publicly announced on September 13, 1956, was the first commercial computer that used a moving head hard disk drive (magnetic disk storage) for secondary storage. RAMAC stood for "Random Access Method of Accounting and Control". Its design was motivated by the need for real time accounting in business.
During the 1960 Olympic Winter Games in Squaw Valley (USA), IBM provided the first electronic data processing systems for the Games. The system featured an IBM RAMAC 305 computer, punch card data collection, and a central printing facility.
Bendix G-15 - 1956
The Bendix G-15 computer was introduced in 1956 by the Bendix Corporation, Computer Division, Los Angeles, California. It was about 5 by 3 by 3 ft (1.5m by 1m by 1m) and weighed about 950 lb (450 kg). The base system, without peripherals, cost $49,500. A working model cost around $60,000. It could also be rented for $1,485 per month. It was meant for scientific and industrial markets. The series was gradually discontinued when Control Data Corporation took over the Bendix computer division in 1963.
Pegasus - 1956
Pegasus was an early thermionic valve (vacuum tube) computer built by Ferranti, Ltd of Great Britain.
The Pegasus 1 was first delivered in 1956 and the Pegasus 2 was delivered in 1959. Ferranti sold twenty-six copies of the Pegasus 1 and twelve copies of the Pegasus 2, making it Ferranti's most popular valve (vacuum tube) computer.
AN/FSQ-7 - 1958
The AN/FSQ-7 was a computer model developed and built in the 1950s by IBM in partnership with the US Air Force. Fifty-two were built and used for command and control functions for the SAGE air-defense system.
An AN/FSQ-7 computer contained 55,000 vacuum tubes, occupied about half an acre (2,000 m²) of floor space, weighed 275 tons, and used up to three megawatts of power. Performance was about 75,000 instructions per second. The fifty-two AN/FSQ-7s remain the largest computers ever built, and will likely hold that record in the future.
IBM 7090 - 1959
The IBM 7090 was a second-generation transistorized version of the earlier IBM 709 vacuum tube mainframe computers and was designed for "large-scale scientific and technological applications". The 7090 was the third member of the IBM 700/7000 series scientific computers. The first 7090 installation was in November 1959. In 1960, a typical system sold for $2,900,000 or could be rented for $63,500 a month.
The 7090 used a 36-bit word length, with an address-space of 32K (32,768) words. It operated with a basic memory cycle of 2.18 μs, using the IBM 7302 Core Storage core memory technology from the IBM 7030 (Stretch) project.
Datasaab D2 - 1960
D2 was a concept and prototype computer designed by Datasaab in Linköping, Sweden. It was built with discrete transistors and completed in 1960. Its purpose was to investigate the feasibility of building a computer for use in an aircraft to assist with navigation, ultimately leading to the design of the CK37 computer used in Saab 37 Viggen. This military side of the project was known as SANK, or Saabs Automatiska Navigations-Kalkylator (Saab's Automatic Navigational-Calculator), and D2 was the name for its civilian application.
BRLESC - 1962
The BRLESC I (Ballistic Research Laboratories Electronic Scientific Computer) was a first-generation electronic computer built by the United States Army's Ballistics Research Laboratory.
BRLESC was designed primarily for scientific and military tasks requiring high precision and high computational speed, such as ballistics problems, army logistical problems, and weapons systems evaluations. It contained 1727 vacuum tubes and 853 transistors and had a memory of 4096 72-bit words. BRLESC employed punch cards, magnetic tape, and a magnetic drum as input-output devices, which could be operated simultaneously.
Honeywell 200 - 1963
The Honeywell 200 was a character-oriented two-address commercial computer introduced by Honeywell in the early 1960s, the basis of later models including 1200, 1250, 2200, 3200, 4200 and the later 2070, and the character processor of the Honeywell 8200.
Introduced to compete with IBM's 1401, the H200 was two or three times faster and, with software support, could execute IBM 1401 programs without need for their recompilation or reassembly. The Liberator marketing campaign exploited this compatibility, and was credited in later Honeywell publicity statements with stalling the sales of IBM 1401 machines. Honeywell claimed an initial rush of hundreds of orders for the H200 that itself stalled when IBM countered with a marketing emphasis on their System 360 product range that was then under development.
UNIVAC 1108 - 1964
The UNIVAC 1108 was the second member of Sperry Rand's UNIVAC 1100 series of computers, introduced in 1964. Integrated circuits replaced the thin film memory that the UNIVAC 1107 used for register storage. Smaller and faster cores, compared to the 1107, were used for main memory.
The North Pole - Beautiful Nature Scene
The North Pole, once an almost mythical place visited only by the heartiest of explorers (and Santa Claus) is now a tourist destination. Though certainly not for everyone, those arctic lovers who are inclined can visit the North Pole by ship, helicopter, or submarine. The textbook definition of the North Pole is the point in the middle of the Arctic Ocean where the Earth’s axis of rotation meets the Earth’s surface. The North Pole is, of course, incredibly cold, though it is significantly warmer than the South Pole. Winter temperatures range from −43 °C (−45 °F) to −26 °C (−15 °F), and Summer temperatures average around the freezing point (0 °C, 32 °F). Tours to the North Pole can be found on a variety of specialty tour company websites.
10 Strangers Animals That Success On The Planet
The axolotl is a Mexican neotenic mole salamander. Neotenic means that, as adults, it holds onto traits seen in juveniles. Axolotls are used extensively in scientific research due to their ability to regenerate most body parts, ease of breeding, and large embryos.
2. Cicada
With 2,500 species of cicada insects around the world, some are stranger than others.
3. Aye-aye
The aye-aye is a rodent-looking lemur found in Madagascar that combines rodent-like teeth with a long, thin middle finger to fill the same ecological niche as a woodpecker.
4. Star-nosed Mole
The star-nosed mole is a small North American mole found in eastern Canada and the north-eastern United States, with records extending along the Atlantic coast as far as extreme southeastern Georgia.
5. Philippine Tarsier
The Philippine Tarsier, known locally as the Maumag in Cebuano/Visayan, is an endangered tarsier species endemic to the Philippines. It is found in the southeastern part of the archipelago, particularly in the islands of Bohol, Samar, Leyte, and Mindanao. Its name is derived from its elongated “tarsus” or ankle bone.
6. The angora rabbit
The angora rabbit is a domesticated species, known for its cultivated hair. The Angora is one of the oldest types of domestic rabbit, originating in Ankara, Turkey, along with the Angora cat and Angora goat.
7. Giant Isopod
Giant isopods can be found in cold and deep sea, primarily in the Atlantic.
8. Kiwa hirsuta (Yeti Crab)
This crustacean was discovered in the South Pacific Ocean in 2005 and is noted for its “fur-like” extensions. This decapod, which is approximately 15 cm (6 inches) long, is notable for the quantity of silky blond setae (resembling fur) covering its pereiopods (thoracic legs, including claws). Its discoverers dubbed it the “yeti lobster” or “yeti crab.”
9. Leafy Sea Dragon
The name is derived from the appearance, with long leaf-like protrusions coming from all over the body. These protrusions are not used for propulsion; they serve only as camouflage. The leafy sea dragon propels itself by means of a pectoral fin on the ridge of its neck and a dorsal fin on its back closer to the tail end. These small fins are almost completely transparent and difficult to see as they undulate minutely to move the creature sedately through the water, completing the illusion of floating seaweed.
10.Dumbo Octopus
They are benthic creatures, living at extreme depths: 3000-4000 meters, and are some of the rarest of the Octopoda species.