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Razdan (computer)
Razdan is a family of general-purpose, digital electronic computers created from 1958–1965 at the Yerevan Computer Research and Development Institute (YerNIIMM). The computer has a semiconductor element base, that is, it belongs to computers of the second generation. Razdan The machine has been developed since 1958, based on the documentation for the M-3 machine (created under the direction of N.Ya.Matyukhin in the laboratory of I. S. Bruk). The head of the work is E. L. Brusilovsky. In 1960, the Razdan machine was handed over to the State Commission. Machine specifications * Command system: two-address, 17 basic commands, each of which has 8 modifications * Number system: binary, the word consists of 36 binary digits, of which 29 are the mantissa, 1 is the sign, 5 is the order, 1 is the sign of the order. * Speed: 5000 ops/sec. * Power consumption: approx. 3 kW from AC 220/380 V, 50 Hz. * Occupied area: 20 sq. m. In parallel with the assembly and adjustment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Electronic Computer
A computer is a machine that can be programmed to automatically carry out sequences of arithmetic or logical operations (''computation''). Modern digital electronic computers can perform generic sets of operations known as ''programs'', which enable computers to perform a wide range of tasks. The term computer system may refer to a nominally complete computer that includes the hardware, operating system, software, and peripheral equipment needed and used for full operation; or to a group of computers that are linked and function together, such as a computer network or computer cluster. A broad range of industrial and consumer products use computers as control systems, including simple special-purpose devices like microwave ovens and remote controls, and factory devices like industrial robots. Computers are at the core of general-purpose devices such as personal computers and mobile devices such as smartphones. Computers power the Internet, which links billions of compute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yerevan Computer Research And Development Institute
The Yerevan Computer Research and Development Institute (YCRDI) ( (''Yerevani mat'ematikakan mekenaneri gitahetazotakan institut (YerMMGHI)'')), is a scientific research institute and the pioneer of the IT and software industry in Armenia. It was founded by the government of USSR in 1956 in Yerevan for the development of computer equipment. The institution is currently involved in the development of computers and automatic control systems for civil and defense purposes. At the beginning of the 1990s, the institute employed over 7,000 staff. Products produced by the YCRDI include: * Measurement and control system for various utility distribution networks, such as electrical, natural gas, water, and thermal energy networks, for measurement, control, and management purposes. * Communication security systems for government agencies and commercial banks. * Management information systems for social security, health care, pension, and other government agencies and organizations. * Opti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiconductor
A semiconductor is a material with electrical conductivity between that of a conductor and an insulator. Its conductivity can be modified by adding impurities (" doping") to its crystal structure. When two regions with different doping levels are present in the same crystal, they form a semiconductor junction. The behavior of charge carriers, which include electrons, ions, and electron holes, at these junctions is the basis of diodes, transistors, and most modern electronics. Some examples of semiconductors are silicon, germanium, gallium arsenide, and elements near the so-called " metalloid staircase" on the periodic table. After silicon, gallium arsenide is the second-most common semiconductor and is used in laser diodes, solar cells, microwave-frequency integrated circuits, and others. Silicon is a critical element for fabricating most electronic circuits. Semiconductor devices can display a range of different useful properties, such as passing current more easil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Computing Hardware (1960s–present)
The history of computing hardware starting at 1960 is marked by the conversion from vacuum tube to solid-state electronics, solid-state devices such as transistors and then integrated circuit (IC) chips. Around 1953 to 1959, discrete transistors started being considered sufficiently reliable and economical that they made further vacuum tube computers competition (economics), uncompetitive. Metal–oxide–semiconductor (MOS) large-scale integration (LSI) technology subsequently led to the development of semiconductor memory in the mid-to-late 1960s and then the microprocessor in the early 1970s. This led to primary computer memory moving away from magnetic-core memory devices to solid-state static and dynamic semiconductor memory, which greatly reduced the cost, size, and power consumption of computers. These advances led to the miniaturized personal computer (PC) in the 1970s, starting with home computers and desktop computers, followed by laptops and then mobile computers over th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aragats (computer)
Aragats is a first-generation electronic computer developed at the Yerevan Computer Research and Development Institute (YerNIIMM). The elemental base is vacuum tubes. The work supervisor is B.E.Khaikin. Development continued from 1958 to 1960. In total, 4 copies of the machine were produced. The basis for the development was the M-3 computer, developed by the team of I. S. Bruk. Simultaneously with the work on "Aragats", and also on the basis of the M-3 scheme, the YerNIIMM developed the Razdan computer, based on a semiconductor element base. To assist in the creation of Razdan and Aragats, several employees of the Computing Center of the Academy of Sciences were seconded to Yerevan, the head of the group was A.P. Merenkov. The head copy was acquired by Perm State University in 1961, although it was originally created for Leningrad State University. It was located on the basement floor of the educational building No. 2, and worked until 1973, until it was decommissioned. At ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yerevan
Yerevan ( , , ; ; sometimes spelled Erevan) is the capital and largest city of Armenia, as well as one of the world's List of oldest continuously inhabited cities, oldest continuously inhabited cities. Situated along the Hrazdan River, Yerevan is the administrative, cultural, and industrial center of the country, as its primate city. It has been the Historical capitals of Armenia, capital since 1918, the Historical capitals of Armenia, fourteenth in the history of Armenia and the seventh located in or around the Ararat Plain. The city also serves as the seat of the Araratian Pontifical Diocese, which is the largest diocese of the Armenian Apostolic Church and one of the oldest dioceses in the world. The history of Yerevan dates back to the 8th century BC, with the founding of the fortress of Erebuni Fortress, Erebuni in 782 BC by King Argishti I of Urartu, Argishti I of Urartu at the western extreme of the Ararat Plain. Erebuni was "designed as a great administrative and reli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
35 Mm Movie Film
35 mm film is a film gauge used in filmmaking, and the film standard. In motion pictures that record on film, 35 mm is the most commonly used gauge. The name of the gauge is not a direct measurement, and refers to the nominal width of the 35 mm format photographic film, which consists of strips wide. The standard negative pulldown, image exposure length on 35 mm for movies ("single-frame" format) is four film perforations, perforations per Film frame, frame along both edges, which results in 16 frames per foot of film. A variety of largely proprietary gauges were devised for the numerous camera and projection systems being developed independently in the late 19th and early 20th centuries, along with various film feeding systems. This resulted in cameras, projectors, and other equipment having to be calibrated to each gauge. The 35 mm width, originally specified as inches, was introduced around 1890 by William Kennedy Dickson and Thomas Edison, using 120 film st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Programming Language
Scientific programming language may refer to two related, yet distinct, concepts in computer programming. In a broad sense, it describes any programming language used extensively in computational science and computational mathematics, such as C, C++, Python, and Java. In a stricter sense, it designates languages that are designed and optimized for handling mathematical formulas and matrix operations, offering intrinsic support for these tasks. Overview In the broad sense, a scientific programming language is one that is applied to numerical modeling, simulation, data analysis, and visualization. Languages such as Python, through libraries like NumPy, SciPy, and Matplotlib, have become dominant in fields ranging from machine learning to high-performance computing. Conversely, the strict sense emphasizes languages that provide built‐in support for matrix arithmetic and symbolic computation. Examples include Fortran, MATLAB, Julia, Octave, and R. These languages are characterized ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ALGOL 60
ALGOL 60 (short for ''Algorithmic Language 1960'') is a member of the ALGOL family of computer programming languages. It followed on from ALGOL 58 which had introduced code blocks and the begin and end pairs for delimiting them, representing a key advance in the rise of structured programming. ALGOL 60 was one of the first languages implementing function definitions (that could be invoked recursively). ALGOL 60 function definitions could be nested within one another (which was first introduced by any programming language), with lexical scope. It gave rise to many other languages, including CPL, PL/I, Simula, BCPL, B, Pascal, and C. Practically every computer of the era had a systems programming language based on ALGOL 60 concepts. Niklaus Wirth based his own ALGOL W on ALGOL 60 before moving to develop Pascal. Algol-W was intended to be the next generation ALGOL but the ALGOL 68 committee decided on a design that was more complex and advanced rather than a cleaned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armenian SSR
The Armenian Soviet Socialist Republic (ArSSR), also known as Soviet Armenia, or simply Armenia, was one of the constituent republics of the Soviet Union, located in the Caucasus region of Eurasia. Soviet Armenia bordered the Soviet republics of Azerbaijan and Georgia and the independent states of Iran and Turkey. The capital of the republic was Yerevan and it contained thirty-seven districts (raions). Other major cities in the Armenian SSR included Leninakan, Kirovakan, Hrazdan, Etchmiadzin, and Kapan. The republic was governed by Communist Party of Armenia, a republican branch of the Communist Party of the Soviet Union. Soviet Armenia was established on 29 November 1920, with the Sovietisation of the short-lived First Republic of Armenia. Consequently, it has been referred to as the Second Republic of Armenia. It became part of the Transcaucasian SFSR (TSFSR), along with neighboring Georgia and Azerbaijan, which comprised one of the four founding republics of the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrey Yershov
Andrey Petrovich Yershov (; 19 April 1931, Moscow – 8 December 1988, Moscow) was a Soviet computer scientist, notable as a pioneer in systems programming and programming language research. Donald Knuth considers him to have independently co-discovered the idea of hashing with linear probing. He also created one of the first algorithms for compiling arithmetic expressions. He was responsible for the languages ''ALPHA'' and '' Rapira'', the first Soviet time-sharing system ''AIST-0'', electronic publishing system ''RUBIN'', and a multiprocessing workstation ''MRAMOR''. He also was the initiator of developing the ''Computer Bank of the Russian Language'' ( Машинный Фонд Русского Языка), the Soviet project for creating a large representative Russian corpus, a project in the 1980s comparable to the Bank of English and British National Corpus. The Russian National Corpus created by the Russian Academy of Sciences in the 2000s is a successor of Yershov's pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
