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IBM 7950 Harvest
The IBM 7950, also known as Harvest, was a one-of-a-kind adjunct to the Stretch computer which was installed at the United States National Security Agency (NSA). Built by IBM, it was delivered in 1962 and operated until 1976, when it was decommissioned. Harvest was designed to be used for cryptanalysis. Development In April 1958, the final design for the NSA-customized version of IBM's Stretch computer had been approved, and the machine was installed in February 1962. The design engineer was James H. Pomerene, and it was built by IBM in Poughkeepsie, New York. Its electronics (fabricated of the same kind of discrete transistors used for Stretch) were physically about twice as big as the Stretch to which it was attached. Harvest added a small number of instructions to Stretch, and could not operate independently. An NSA-conducted evaluation found that Harvest was more powerful than the best commercially available machine by a factor of 50 to 200, depending on the task.Bamford, 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HARVEST
Harvesting is the process of gathering a ripe crop from the fields. Reaping is the cutting of grain or pulse for harvest, typically using a scythe, sickle, or reaper. On smaller farms with minimal mechanization, harvesting is the most labor-intensive activity of the growing season. On large mechanized farms, harvesting uses the most expensive and sophisticated farm machinery, such as the combine harvester. Process automation has increased the efficiency of both the seeding and harvesting processes. Specialized harvesting equipment utilizing conveyor belts to mimic gentle gripping and mass-transport replaces the manual task of removing each seedling by hand. The term "harvesting" in general usage may include immediate postharvest handling, including cleaning, sorting, packing, and cooling. The completion of harvesting marks the end of the growing season, or the growing cycle for a particular crop, and the social importance of this event makes it the focus of seasonal c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compiler
In computing, a compiler is a computer program that translates computer code written in one programming language (the ''source'' language) into another language (the ''target'' language). The name "compiler" is primarily used for programs that translate source code from a high-level programming language to a low-level programming language (e.g. assembly language, object code, or machine code) to create an executable program. Compilers: Principles, Techniques, and Tools by Alfred V. Aho, Ravi Sethi, Jeffrey D. Ullman - Second Edition, 2007 There are many different types of compilers which produce output in different useful forms. A ''cross-compiler'' produces code for a different CPU or operating system than the one on which the cross-compiler itself runs. A ''bootstrap compiler'' is often a temporary compiler, used for compiling a more permanent or better optimised compiler for a language. Related software include, a program that translates from a low-level language t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
One-of-a-kind Computers
One of a Kind may refer to: Film and television * ''One of a Kind'' (film), a 2013 French film * ''One of a Kind'' (game show), a 1958–1959 Canadian panel show * ''One of a Kind'' (TV series), a 1978 Canadian children's series * "One of a Kind" (''Brandy & Mr. Whiskers''), a television episode * "One of a Kind" (''Danny Phantom''), a television episode Music Albums * ''One of a Kind'' (Bruford album) or the title song, 1979 * ''One of a Kind'' (Dave Grusin album), 1977 * ''One of a Kind'' (Moe Bandy album) or the title song, 1979 * ''One of a Kind'' (Pandora album) or the title song (see below), 1993 * ''One of a Kind'' (Tammy Wynette album) or the title song (see below), 1977 * ''One of a Kind'' (G-Dragon EP) or the title song (see below), 2012 * ''One of a Kind'' (Monsta X EP), 2021 * ''One of a Kind'', by Della Reese, 1978 * ''One of a Kind'', by Orleans, or the title song, 1982 Songs * "One of a Kind" (G-Dragon song), 2012 * "One of a Kind" (Pandora song), 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM 700/7000 Series
The IBM 700/7000 series is a series of large-scale (mainframe) computer systems that were made by IBM through the 1950s and early 1960s. The series includes several different, incompatible processor architectures. The 700s use vacuum-tube logic and were made obsolete by the introduction of the transistorized 7000s. The 7000s, in turn, were eventually replaced with System/360, which was announced in 1964. However the 360/65, the first 360 powerful enough to replace 7000s, did not become available until November 1965. Early problems with OS/360 and the high cost of converting software kept many 7000s in service for years afterward. Architectures The IBM 700/7000 series has six completely different ways of storing data and instructions: *First scientific (36/18- bit words): 701 (Defense Calculator) *Later scientific (36-bit words, hardware floating-point): 704, 709, 7040, 7044, 7090, 7094 *Commercial (variable-length character strings): 702, 705, 7080 * 1400 series ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Simon Snyder
Samuel Simon Snyder (August 18, 1911 – December 28, 2007) was a cryptographer for the United States Government. His pioneering work in early computers led directly to the development of the computer as we know it, and laid the foundation for many aspects of the modern computing industry. He is known for having broken every Japanese encrypted message with his partners in the Signal Intelligence Service during World War II and for having developed the MARC standards. Career Snyder was an alumnus of George Washington University, where, at the height of the Great Depression, he attended night school, working on various government jobs during the day. While still at the university, Snyder started his career in 1936 with the Signal Intelligence Service as one of the first 10 employees, and worked at the National Security Agency from 1934 to 1964. He graduated from George Washington University in 1939 with a B.S. in chemistry. During World War II, Snyder coordinated teams and w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Bamford
James Bamford (born September 15, 1946) is an American author, journalist and documentary producer noted for his writing about United States intelligence agencies, especially the National Security Agency (NSA). ''The New York Times'' has called him "the nation's premier journalist on the subject of the National Security Agency" and ''The New Yorker'' named him "the NSA's chief chronicler." Bamford has taught at the University of California, Berkeley as a distinguished visiting professor and has written for ''The New York Times Magazine'', ''The Atlantic'', '' Harper's'', and many other publications. In 2006, he won the National Magazine Award for Reporting for his writing on the war in Iraq published in ''Rolling Stone''. He is also an Emmy nominated documentary producer for PBS and spent a decade as the Washington investigative producer for ABC's '' World News Tonight''. In 2015 he became the national security columnist for ''Foreign Policy'' magazine and he also writes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptanalytic Computer
A cryptanalytic computer is a computer designed to be used for cryptanalysis, which nowadays involves massive statistical analysis and multiple trial decryptions that since before World War II are possible only with automated equipment. Polish cryptanalysts designed and built automated aids in their work on Enigma traffic. Arguably, the first modern computer (digital, electronic, and somewhat programmable) was built for cryptanalytic work at Bletchley Park (the Colossus) during the war. More modern computers were important after World War II, and some machines (like the Cray-1) are reported to have had machine instructions hardwired in at the request of NSA. Computers continue to be important in cryptanalysis well into the 21st century. NSA, in fact, is said to have the largest number of installed computers on the planet. Whether this is true in an age of Google computer farms and such is doubtful but remains publicly unknown. See also * Bomba (cryptography) * Bombe * Col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Security
Computer security, cybersecurity (cyber security), or information technology security (IT security) is the protection of computer systems and networks from attack by malicious actors that may result in unauthorized information disclosure, theft of, or damage to hardware, software, or data, as well as from the disruption or misdirection of the services they provide. The field has become of significance due to the expanded reliance on computer systems, the Internet, and wireless network standards such as Bluetooth and Wi-Fi, and due to the growth of smart devices, including smartphones, televisions, and the various devices that constitute the Internet of things (IoT). Cybersecurity is one of the most significant challenges of the contemporary world, due to both the complexity of information systems and the societies they support. Security is of especially high importance for systems that govern large-scale systems with far-reaching physical effects, such as power distrib ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solved Systems
Solved may refer to: * Solved (TV series) * ''Solved'' (album), an album by MC Frontalot *Solved (EP), an EP by Svoy *solved game See also *Solution (other) Solution may refer to: * Solution (chemistry), a mixture where one substance is dissolved in another * Solution (equation), in mathematics ** Numerical solution, in numerical analysis, approximate solutions within specified error bounds * Soluti ... * Resolution (other) * Unsolved (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BETA Programming Language
BETA is a pure object-oriented language originating within the "Scandinavian School" in object-orientation where the first object-oriented language Simula was developed.SourceOle Lehrmann Madsen: An overview of BETA Among its notable features, it introduced nested classes, and unified classes with procedures into so called patterns. The project is inactive as of October 2020.https://beta.cs.au.dk/ Features Technical overview From a technical perspective, BETA provides several unique features. Classes and Procedures are unified to one concept, a Pattern. Also, classes are defined as properties/attributes of objects. This means that a class cannot be instantiated without an explicit object context. A consequence of this is that BETA supports nested classes. Classes can be virtually defined, much like virtual methods can be in most object-oriented programming languages. Virtual entities (such as methods and classes) are never overwritten; instead they are redefined or specializ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
