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IBM 4020
The IBM 4020 Military Computer was a Cold War era military computer. Two of them were used in the two IBM AN/FSQ-31 SAC Data Processing Systems. Details: * Instruction rate : Up to 400,000 instructions per second * Cycle time : 2.5 microseconds * Word size : 48 bits + 2 parity bits * Core memory, Core storage : up to 131,072 words * operates in parallel mode * 69 instructions * single address instructions * Add or subtract : 2.5 microseconds (fixed point) * Add or subtract : (floating point) * Multiply : average 24 µs (24 bit precision fixed point) * Multiply : (floating point) * Multiprocessing with Automatic Priority The instruction format includes: * 7 bit op code * 2 bit real data indicator * 3 bit byte displacement * 3 bit mode selector * 1 sign bit * 8 bit 'byte activity' * 1 bit Double index flag * 1 bit Indirect address flag * 4 bit index register selection * 18 bit address. Man-machine communications included a light-gun to indicate an area of interest on a visual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM Federal Systems Division
IBM, International Business Machines (IBM), nicknamed "Big Blue", is a multinational computer technology and IT consulting corporation headquartered in Armonk, New York, United States. IBM originated from the unification of several companies that worked to automate routine business transactions, including the first companies to build punched card based unit record equipment, data tabulating machines and to build time clocks. In 1911, these companies were amalgamated into the Computing-Tabulating-Recording Company (CTR). Thomas J. Watson (1874–1956) joined the company in 1914 as General Manager, and became its President in 1915. In 1924, the company changed its name to "International Business Machines." IBM expanded into electric typewriters and other office machines. Watson was a salesman whose goal was to build a highly motivated, very well paid sales force that could craft solutions for clients unfamiliar with the latest technology. His motto was "Think (IBM), THINK". Custom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold War
The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because there was no large-scale fighting directly between the two superpowers, but they each supported major regional conflicts known as proxy wars. The conflict was based around the ideological and geopolitical struggle for global influence by these two superpowers, following their temporary alliance and victory against Nazi Germany and Imperial Japan in 1945. Aside from the nuclear arsenal development and conventional military deployment, the struggle for dominance was expressed via indirect means such as psychological warfare, propaganda campaigns, espionage, far-reaching embargoes, rivalry at sports events, and technological competitions such as the Space Race. The Western Bloc was led by the United States as well as a number of other First W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM AN/FSQ-31 SAC Data Processing System
The IBM AN/FSQ-31 SAC Data Processing System (FSQ-31, Q-31, colloq.) was a USAF command, control, and coordination system for the Cold War Strategic Air Command (SAC). IBM's Federal Systems Division was the prime contractor for the AN/FSQ-31s, which were part of the TBD 465L SAC Automated Command and Control System (SACCS), a "Big L" system of systems ( cf. 416L SAGE & 474L BMEWS( which had numerous sites throughout the Continental United States: "all SAC command posts and missile LCC's" (e.g., The Notch), a communication network, etc.; and the several FSQ-31 sites including: * Offutt AFB's "Headquarters SAC Command Center" (DPC 1 & DPC 2 units) *March AFB's 15AF Combat Operations Center ((DPC 3), * Barksdale AFB by March 1983. The FSQ-31 provided data to a site's Data Display Central (DDC) "a wall display" (e.g., Iconorama), and the FSQ-31 replaced the TBD at Offutt in 1960. On February 20, 1987, "SAC declared initial operational capability for the SAC Digital Network hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Core Memory
Core or cores may refer to: Science and technology * Core (anatomy), everything except the appendages * Core (manufacturing), used in casting and molding * Core (optical fiber), the signal-carrying portion of an optical fiber * Core, the central part of a fruit * Hydrophobic core, the interior zone of a protein * Nuclear reactor core, a portion containing the fuel components * Pit (nuclear weapon) or core, the fissile material in a nuclear weapon * Semiconductor intellectual property core (IP core), is a unit of design in ASIC/FPGA electronics and IC manufacturing * Atomic core, an atom with no valence electrons Geology and astrophysics * Core sample, in Earth science, a sample obtained by coring ** Ice core * Core, the central part of a galaxy; see Mass deficit * Core (anticline), the central part of an anticline or syncline * Planetary core, the center of a planet ** Earth's inner core ** Earth's outer core * Stellar core, the region of a star where nuclear fusion takes p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visual Display Unit
A computer monitor is an output device that displays information in pictorial or textual form. A discrete monitor comprises a visual display, support electronics, power supply, housing, electrical connectors, and external user controls. The display in modern monitors is typically an LCD with LED backlight, having by the 2010s replaced CCFL backlit LCDs. Before the mid- 2000s, most monitors used a CRT. Monitors are connected to the computer via DisplayPort, HDMI, USB-C, DVI, VGA, or other proprietary connectors and signals. Originally, computer monitors were used for data processing while television sets were used for video. From the 1980s onward, computers (and their monitors) have been used for both data processing and video, while televisions have implemented some computer functionality. In the 2000s, the typical display aspect ratio of both televisions and computer monitors has changed from 4:3 to 16:9. Modern computer monitors are mostly interchangeable with television s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Electronics Of The United States
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct military uniform. It may consist of one or more military branches such as an army, navy, air force, space force, marines, or coast guard. The main task of the military is usually defined as defence of the state and its interests against external armed threats. In broad usage, the terms ''armed forces'' and ''military'' are often treated as synonymous, although in technical usage a distinction is sometimes made in which a country's armed forces may include both its military and other paramilitary forces. There are various forms of irregular military forces, not belonging to a recognized state; though they share many attributes with regular military forces, they are less often referred to as simply ''military''. A nation's military may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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