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WEIZAC
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 w ... [...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, 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] |
Weizmann Institute
The Weizmann Institute of Science ( ''Machon Weizmann LeMada'') is a Public university, public research university in Rehovot, Israel, established in 1934, fourteen years before the State of Israel was founded. Unlike other List of Israeli universities and colleges, Israeli universities it exclusively offers postgraduate-only degrees in the natural science, natural and exact sciences. The institute is a multidisciplinary research center, employing around 3,800 scientists, Postdoctoral researcher, postdoctoral fellows, Ph.D. and M.Sc. students, and scientific, technical, and administrative staff working at the institute. As of 2019, the Weizmann Institute of Science has been associated with six Nobel laureates and three Turing Award winners. The Weizmann Institute of Science and Elbit Systems have collaborated on various projects, notably including the development and supply of the space telescope for Israel's Ultraviolet Transient Astronomy Satellite (ULTRASAT) program and re ... [...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 Proj ... [...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 in ... [...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 thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weizmann Automatic Calculator
Weizmann or Weizman is a surname. 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 (1993–2000) * Maria Weizmann, a sister of Israeli politician and notable scientist Chaim Weizmann * Martin Weitzman, economist and Professor of Economics at Harvard University * Reuma Weiz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asynchronous Circuit
Asynchronous circuit (clockless or self-timed circuit) is a sequential logic, sequential digital logic electrical network, circuit that does not use a global clock circuit or clock signal, 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 Communications protocol, 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 ... [...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 under his direction, starting in 1946 and finished in 1951. 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. Ralph J. Slutz, 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. Descripti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Von Neumann
John von Neumann ( ; ; December 28, 1903 – February 8, 1957) was a Hungarian and American mathematician, physicist, computer scientist and engineer. Von Neumann had perhaps the widest coverage of any mathematician of his time, integrating Basic research, pure and Applied science#Applied research, applied sciences and making major contributions to many fields, including mathematics, physics, economics, computing, and statistics. He was a pioneer in building the mathematical framework of quantum physics, in the development of functional analysis, and in game theory, introducing or codifying concepts including Cellular automaton, cellular automata, the Von Neumann universal constructor, universal constructor and the Computer, digital computer. His analysis of the structure of self-replication preceded the discovery of the structure of DNA. During World War II, von Neumann worked on the Manhattan Project. He developed the mathematical models behind the explosive lense ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic-core Memory
In computing, magnetic-core memory is a form of random-access memory. It predominated for roughly 20 years between 1955 and 1975, and 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). Each core stores one bit of information. Two or more wires pass through each core, forming an X-Y array of cores. When an electrical current above a certain threshold is applied to the wires, the core will become magnetized. The core to be assigned a value – or ''written'' – is selected by powering one X and one Y wire to half of the required current, such that only the single core at the intersection is written. Depending on the direction of the currents, the core will pick up a clockwise or counterclockwise magnetic field, storing a 1 or 0. This writing process also causes electricity to be electromagnetic induction, induced into nearby wires. If t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brookhaven National Laboratory
Brookhaven National Laboratory (BNL) is a United States Department of Energy national laboratories, United States Department of Energy national laboratory located in Upton, New York, a hamlet of the Brookhaven, New York, Town of Brookhaven. It was formally established in 1947 at the site of Camp Upton, a former List of United States Army installations, U.S. Army base on Long Island. Located 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 operations are overseen by a Department of Energy Site office, is staffed by approx ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
