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WEIZAC
WEIZAC (''Weizmann Automatic Computer'') was the first computer in Israel, and one of the first large-scale, stored-program, electronic computers in the world. It was built at the Weizmann Institute during 1954–1955, based on the Institute for Advanced Study (IAS) architecture developed by John von Neumann and was operational until the end of 1963. WEIZAC was widely used by Israeli scientists and researchers and helped with the advancement of science and technology in the young nation. As with all computers of its era, it was a one of a kind machine that could not exchange programs with other computers (even other IAS machines). The beginning The WEIZAC project was initiated by Prof. Chaim L. Pekeris, who worked at the IAS at the time von Neumann's IAS machine was being designed. Chaim Weizmann, Israel's future first president, asked Pekeris to establish the Department of Applied Mathematics at the Weizmann Institute, and Pekeris wanted to have a similar computer available t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weizac (1954-1964) Front
WEIZAC (''Weizmann Automatic Computer'') was the first computer in Israel, and one of the first large-scale, stored program, stored-program, electronic computers in the world. It was built at the Weizmann Institute during 1954–1955, based on the Institute for Advanced Study (IAS) architecture developed by John von Neumann and was operational until the end of 1963. WEIZAC was widely used by Israeli scientists and researchers and helped with the advancement of science and technology in the young nation. As with all computers of its era, it was a one of a kind machine that could not exchange programs with other computers (even other IAS machines). The beginning The WEIZAC project was initiated by Prof. Chaim L. Pekeris, who worked at the Institute for Advanced Study, IAS at the time von Neumann's IAS machine was being designed. Chaim Weizmann, Israel's future first president, asked Pekeris to establish the Department of Applied Mathematics at the Weizmann Institute, and Pekeris ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WEIZAC Construction
WEIZAC (''Weizmann Automatic Computer'') was the first computer in Israel, and one of the first large-scale, stored-program, electronic computers in the world. It was built at the Weizmann Institute during 1954–1955, based on the Institute for Advanced Study (IAS) architecture developed by John von Neumann and was operational until the end of 1963. WEIZAC was widely used by Israeli scientists and researchers and helped with the advancement of science and technology in the young nation. As with all computers of its era, it was a one of a kind machine that could not exchange programs with other computers (even other IAS machines). The beginning The WEIZAC project was initiated by Prof. Chaim L. Pekeris, who worked at the IAS at the time von Neumann's IAS machine was being designed. Chaim Weizmann, Israel's future first president, asked Pekeris to establish the Department of Applied Mathematics at the Weizmann Institute, and Pekeris wanted to have a similar computer available t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerald Estrin
Gerald Estrin (September 9, 1921 – March 29, 2012) was an American computer scientist, and professor at the UCLA Computer Science Department. He is known for his work on the organization of computer systems, on parallel processing and SARA (system architects apprentice). Early life and education Estrin was born in New York City in 1921. He met his future wife Thelma Austern in 1941 at City College, New York and they were married when he was 20 and she was 17. Estrin entered the Army during World War II, after which he and Thelma Estrin entered the University of Wisconsin-Madison, where they both earned degrees in Electrical Engineering. Estrin received his B.S, M.S. and Ph.D. degrees from the University of Wisconsin in 1948, 1949, and 1951, respectively. Institute for Advanced Study Estrin served as research engineer in the von Neumann group at IAS from 1950 to 1956. This led to an invitation from the Weizmann Institute of Science in Israel to direct the WEIZAC Project. E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science And Technology In Israel
Science and technology in Israel is one of the country's most developed sectors. Israel spent 4.3% of its gross domestic product (GDP) on civil research and development in 2015, the highest ratio in the world. In 2019, Israel was ranked the world's fifth most innovative country by the Bloomberg Innovation Index. It ranks thirteenth in the world for scientific output as measured by the number of scientific publications per million citizens. In 2014, Israel's share of scientific articles published worldwide (0.9%) was nine times higher than its share of the global population (0.1%). Israel counts 140 scientists and technicians per 10,000 employees, one of the highest ratios in the world. In comparison, there are 85 per 10,000 in the United States and 83 per 10,000 in Japan. In 2012, Israel counted 8,337 full-time equivalent researchers per million inhabitants. This compares with 3,984 in the US, 6,533 in the Republic of South Korea and 5,195 in Japan. Israel's high technology indu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weizmann Institute
The Weizmann Institute of Science ( he, מכון ויצמן למדע ''Machon Vaitzman LeMada'') is a public research university in Rehovot, Israel, established in 1934, 14 years before the State of Israel. It differs from other Israeli universities in that it offers only postgraduate degrees in the natural and exact sciences. It is a multidisciplinary research center, with around 3,800 scientists, postdoctoral fellows, Ph.D. and M.Sc. students, and scientific, technical, and administrative staff working at the institute. As of 2019, six Nobel laureates and three Turing Award winners have been associated with the Weizmann Institute of Science. History Founded in 1934 by Chaim Weizmann and his first team, among them Benjamin M. Bloch, as the Daniel Sieff Research Institute. Weizmann had offered the post of director to Nobel Prize laureate Fritz Haber, but took over the directorship himself after Haber's death en route to Palestine. Before he became President of the State ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thelma Estrin
Thelma Estrin (née Austern; February 21, 1924 – February 15, 2014) was an American computer scientist and engineer who did pioneering work in the fields of expert systems and biomedical engineering. Estrin was one of the first to apply computer technology to healthcare and medical research. In 1954, Estrin helped to design the Weizmann Automatic Computer, or WEIZAC, the first computer in Israel and the Middle East, a moment marked as an IEEE Milestone in Electrical and Computer Engineering. She was professor emerita in the Department of Computer Science, University of California at Los Angeles (UCLA). Early life and education Estrin was born Thelma Austern in New York City in 1924 and attended public schools there. Demonstrating an early aptitude for mathematics, she began her higher education at City College of New York (CCNY) in 1941. In the same year she met her soon-to-be husband, Gerald Estrin, while at CCNY, marrying him when she was only 17. In 1942, Estrin took a thre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IAS Machine
The IAS machine was the first electronic computer built at the Institute for Advanced Study (IAS) in Princeton, New Jersey. It is sometimes called the von Neumann machine, since the paper describing its design was edited by John von Neumann, a mathematics professor at both Princeton University and IAS. The computer was built from late 1945 until 1951 under his direction. The general organization is called von Neumann architecture, even though it was both conceived and implemented by others. The computer is in the collection of the Smithsonian National Museum of American History but is not currently on display. History Julian Bigelow was hired as chief engineer in May 1946. Hewitt Crane, Herman Goldstine, Gerald Estrin, Arthur Burks, George W. Brown and Willis Ware also worked on the project. The machine was in limited operation in the summer of 1951 and fully operational on June 10, 1952. It was in operation until July 15, 1958. Description The IAS machine was a binary compu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weizmann Automatic Calculator
Weizman(n) is a surname, common among the Jews, a variant of Weissmann Other transliteration variants of this spelling (with z/tz/ts in place of ss/ß) include Weitzmann, Weitsman, Wajcman, Vaytsman, Veitsman, etc. Notable people with this surname include: * Chaim Weizmann, a chemist, statesman, President of the World Zionist Organization, first President of Israel and founder of a research institute in Israel which eventually became the Weizmann Institute of Science ** Weizmann Institute of Science, an institute of higher learning and research in Rehovot, Israel ** Faisal-Weizmann Agreement, an agreement signed as part of the Paris Peace Conference, 1919 ** Weizmann organism, a commercially valuable bacterium, included in the genus ''Clostridium'' ** WEIZAC (Weizmann Automatic Computer), the first computer in Israel, and possibly the first large-scale, stored-program, electronic computer outside the US and Europe * Ezer Weizman, the seventh President of the State of Israel (1993- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asynchronous Circuit
Asynchronous circuit (clockless or self-timed circuit) is a sequential digital logic circuit that does not use a global clock circuit or signal generator to synchronize its components. Instead, the components are driven by a handshaking circuit which indicates a completion of a set of instructions. Handshaking works by simple data transfer protocols. Many synchronous circuits were developed in early 1950s as part of bigger asynchronous systems (e.g. ORDVAC). Asynchronous circuits and theory surrounding is a part of several steps in integrated circuit design, a field of digital electronics engineering. Asynchronous circuits are contrasted with synchronous circuits, in which changes to the signal values in the circuit are triggered by repetitive pulses called a clock signal. Most digital devices today use synchronous circuits. However asynchronous circuits have a potential to be much faster, have a lower level of power consumption, electromagnetic interference, and better modular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institute For Advanced Study
The Institute for Advanced Study (IAS), located in Princeton, New Jersey, in the United States, is an independent center for theoretical research and intellectual inquiry. It has served as the academic home of internationally preeminent scholars, including J. Robert Oppenheimer, Albert Einstein, Hermann Weyl, John von Neumann, and Kurt Gödel, many of whom had emigrated from Europe to the United States. It was founded in 1930 by American educator Abraham Flexner, together with philanthropists Louis Bamberger and Caroline Bamberger Fuld. Despite collaborative ties and neighboring geographic location, the institute, being independent, has "no formal links" with Princeton University. The institute does not charge tuition or fees. Flexner's guiding principle in founding the institute was the pursuit of knowledge for its own sake.Jogalekar. The faculty have no classes to teach. There are no degree programs or experimental facilities at the institute. Research is never contracted or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic-core Memory
Magnetic-core memory was the predominant form of random access, random-access computer memory for 20 years between about 1955 and 1975. Such memory is often just called core memory, or, informally, core. Core memory uses toroids (rings) of a hard magnetic material (usually a Ferrite (magnet)#Semi-hard ferrites, semi-hard ferrite) as transformer cores, where each wire threaded through the core serves as a transformer winding. Two or more wires pass through each core. Magnetic Magnetic hysteresis, hysteresis allows each of the cores to "remember", or store a state. Each core stores one bit of information. A core can be magnetized in either the clockwise or counter-clockwise direction. The value of the bit stored in a core is zero or one according to the direction of that core's magnetization. Electric current pulses in some of the wires through a core allow the direction of the magnetization in that core to be set in either direction, thus storing a one or a zero. Another wire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brookhaven National Laboratory
Brookhaven National Laboratory (BNL) is a United States Department of Energy national laboratory located in Upton, Long Island, and was formally established in 1947 at the site of Camp Upton, a former U.S. Army base and Japanese internment camp. Its name stems from its location within the Town of Brookhaven, approximately 60 miles east of New York City. It is managed by Stony Brook University and Battelle Memorial Institute. Research at BNL includes nuclear and high energy physics, energy science and technology, environmental and bioscience, nanoscience, and national security. The 5,300 acre campus contains several large research facilities, including the Relativistic Heavy Ion Collider and National Synchrotron Light Source II. Seven Nobel Prizes have been awarded for work conducted at Brookhaven Lab. Overview BNL is staffed by approximately 2,750 scientists, engineers, technicians, and support personnel, and hosts 4,000 guest investigators every year. The laboratory has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
