|
ARRA (computer)
The ARRA (for "Automatische Relais Rekenmachine Amsterdam", Automatic Relay Calculator Amsterdam) was the first Dutch computer, and was built from relays for the Dutch Mathematical Centre (Dutch: Mathematisch Centrum), which later became the Centrum Wiskunde & Informatica (CWI). It was designed and built by Carel Scholten and Bram Loopstra, and was finished in 1952. Because of reliability problems it was soon taken out of commission, and "updated" to the ARRA II, which actually was a completely new design. In December 1953, electronic ARRA II performed its first programs and was completed in 1954. See also Other computers designed and built at the Mathematical Centre: * ARRA II (computer) * FERTA (computer) * ARMAC (computer), 1956 Other very early Dutch computers: * P3 (computer) * PASCAL (computer) * PETER (computer) * PTERA (computer), 1953 * STEVIN (computer) * Testudo (computer) * X1 (computer) The , sometimes called the Sharp X1 or CZ-800C, is a series of ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Netherlands
) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherlands , established_title2 = Act of Abjuration , established_date2 = 26 July 1581 , established_title3 = Peace of Münster , established_date3 = 30 January 1648 , established_title4 = Kingdom established , established_date4 = 16 March 1815 , established_title5 = Liberation Day (Netherlands), Liberation Day , established_date5 = 5 May 1945 , established_title6 = Charter for the Kingdom of the Netherlands, Kingdom Charter , established_date6 = 15 December 1954 , established_title7 = Dissolution of the Netherlands Antilles, Caribbean reorganisation , established_date7 = 10 October 2010 , official_languages = Dutch language, Dutch , languages_type = Regional languages , languages_sub = yes , languages = , languages2_type = Reco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electro-mechanical Computers
In engineering, electromechanics combines processes and procedures drawn from electrical engineering and mechanical engineering. Electromechanics focuses on the interaction of electrical and mechanical systems as a whole and how the two systems interact with each other. This process is especially prominent in systems such as those of DC or AC rotating electrical machines which can be designed and operated to generate power from a mechanical process (generator) or used to power a mechanical effect (motor). Electrical engineering in this context also encompasses electronics engineering. Electromechanical devices are ones which have both electrical and mechanical processes. Strictly speaking, a manually operated switch is an electromechanical component due to the mechanical movement causing an electrical output. Though this is true, the term is usually understood to refer to devices which involve an electrical signal to create mechanical movement, or vice versa mechanical movement ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZERO (computer)
0 (zero) is a number representing an empty quantity. In place-value notation such as the Hindu–Arabic numeral system, 0 also serves as a placeholder numerical digit, which works by multiplying digits to the left of 0 by the radix, usually by 10. As a number, 0 fulfills a central role in mathematics as the additive identity of the integers, real numbers, and other algebraic structures. Common names for the number 0 in English are ''zero'', ''nought'', ''naught'' (), ''nil''. In contexts where at least one adjacent digit distinguishes it from the letter O, the number is sometimes pronounced as ''oh'' or ''o'' (). Informal or slang terms for 0 include ''zilch'' and ''zip''. Historically, ''ought'', ''aught'' (), and ''cipher'', have also been used. Etymology The word ''zero'' came into the English language via French from the Italian , a contraction of the Venetian form of Italian via ''ṣafira'' or ''ṣifr''. In pre-Islamic time the word (Arabic ) had the meaning ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZEBRA (computer)
The ZEBRA (Zeer Eenvoudige Binaire Reken Automaat translated Very Simple Binary Automatic Calculator) was one of the first computers to be designed in the Netherlands, (the first one was the " ARRA") and one of the first Dutch computers to be commercially available. It was designed by Willem van der Poel of the Netherlands Post, Telegraph and Telephone, and first delivered in 1958. The production run consisted of fifty-five machines, manufactured and marketed by the British company Standard Telephones and Cables, Ltd. The ZEBRA was a binary, two-address machine with a 33-bit word length. Storage was provided by a magnetic drum memory holding 8K words organised as 256 tracks of 32 instructions; accumulators were also implemented as recirculating drum tracks in a manner similar to that used in the Bendix G-15. Peripherals included paper tape reader and punch, and a teleprinter. In 1967, six Zebra computers were in use in UK universities and technical colleges. Programming Lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrologica X8
{{Infobox information appliance , name = Electrologica X8 , title = , aka = EL X8 , logo = , logo caption = , image = Electrologica X8.jpg , image_size = , caption = EL X8 on display at Museum Boerhaave in Leiden , developer = , manufacturer = Electrologica , family = , type = Mainframe computer , generation = , release date = {{Start date and age, 1964 , lifespan = , price = , discontinued = {{End date and age, 1968 , units sold = , unitsshipped = , media = , os = THE multiprogramming system , power = , soc = , cpu = , memory = , storage = , memory card = , display = , graphics = , sound = , input = , controllers = , camera = , touchpad = , connectivity = , platform = , service = , dimensions = , weight = , topgame = , compatibility = , predecessor = Electrologica X1 , successor = , related = , website = The Electrologica X8 (or EL X8) was a digital computer designed as a successor to the Electrologica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X4 (computer)
X4, X-4 or x4 may refer to: * BMW X4, a German crossover automobile * Sehol X4, a Chinese crossover automobile * Honda X4, a Japanese motorcycle * Moto X4, an Android Smartphone * ''Mega Man X4'', a video game * Naish X4, a kitesurfing kite * The Norteños street gang * Northrop X-4 Bantam, an early jet age research aircraft * A common name for petroleum ether * A four-lane PCI Express slot * Ruhrstahl X-4, a German World War II air-to-air guided missile * Ultimate X4, a comic-book crossover in the Ultimate Marvel Universe * X4 (New York City bus), an express bus route * Stagecoach Gold bus route X4, a bus route in the United Kingdom * X4 virus X4, X-4 or x4 may refer to: * BMW X4, a German crossover automobile * Sehol X4, a Chinese crossover automobile * Honda X4, a Japanese motorcycle * Moto X4, an Android Smartphone * ''Mega Man X4'', a video game * Naish X4, a kitesurfing kite * The ..., a T-cell tropic HIV * '' X-Men Origins: Wolverine'', a 2009 film * '' X-Men: Days of Futu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X2 (computer)
X2 may refer to: Computers * X2 (protocol), a pre-V.90 standard for 56k downstream modem communications * Athlon 64 X2, the first dual-core desktop CPU manufactured by AMD * A two-lane PCI Express, slot * A type of 10 Gigabit Ethernet, optical transceiver * X2, a transport interface used to connect enodeBs in a LTE/4G network Vehicles and transportation * Bathyscaphe ''Trieste II'', also known as ''X-2'', the US Navy bathyscaphe based on the ''Trieste'' * Bell X-2, an experimental supersonic aircraft * BMW X2, a SUV vehicle produced by BMW * HMS ''X2'', a Royal Navy submarine * Kawasaki X2, a personal water craft * Mitsubishi X-2 Shinshin, a Japanese experimental stealth fighter (formerly known as ATD-X) * North Wing Sport X2, an American ultralight trike design * Orba, also known as ''X-2'', a planned British satellite * Sikorsky X2, a prototype, coaxial high-speed helicopter * SJ X2, used for the X 2000 train system in Sweden * Skycycle X-2, a rocket used by Evel Knievel * S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrologica X1
The Electrologica X1 was a digital computer designed and manufactured in the Netherlands from 1958 to 1965. About thirty were produced and sold in the Netherlands and abroad. The X1 was designed by the Mathematical Centre in Amsterdam, an academic organization that had been involved in computer design since 1947, and manufactured by Electrologica NV, * a company formed expressly for the purpose of producing the machine. The X1 was a solid-state binary computer ("completely transistorized") with magnetic core memory. Word-length was 27 bits and peripherals included punched and magnetic tape. It was one of the first European computers to have an interrupt facility. The X1 was the subject of Edsger Dijkstra's Ph.D. dissertation, and the target of the first complete working ALGOL 60 compiler, completed by Dijkstra and Jaap Zonneveld. In 1965, the X1 was superseded by the X8. Electrologica was taken over by Philips a few years later. Instruction set The X1 allowed conditional exec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Testudo (computer)
Testudo (which meant "tortoise" in classical Latin) may refer to: * Battering ram, an armored siege engine with metal plating on the top to protect from missiles fired from above * Chevrolet Testudo, a concept car designed and built by Bertone on a Chevrolet Corvair unibody chassis * Steel Testudo or the Nationalist-Socialist Party of Romania, 1930s political party * Testudo (mascot), the mascot of University of Maryland, College Park * ''Testudo'' (genus), a genus in the tortoise family of turtles * Testudo formation, a Roman military tactic which involved a formation of soldiers using their shields to form a tortoise-shell-like protective cover against enemy weapons * Testudo, the Latin variant of the Greek chelys harp, involving a sound-box made from a tortoise shell * Testudo, an obsolete constellation now in the constellation of Pisces Pisces may refer to: * Pisces, an obsolete (because of land vertebrates) taxonomic superclass including all fish * Pisces (astrology), an astr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STEVIN (computer)
Simon Stevin (; 1548–1620), sometimes called Stevinus, was a Flemish mathematician, scientist and music theorist. He made various contributions in many areas of science and engineering, both theoretical and practical. He also translated various mathematical terms into Dutch, making it one of the few European languages in which the word for mathematics, '' wiskunde'' ('' wis'' and '' kunde'', i.e., "the knowledge of what is certain"), was not a loanword from Greek but a calque via Latin. He also replaced the word '' chemie'', the Dutch for chemistry, by '' scheikunde'' ("the art of separating"), made in analogy with '' wiskunde''. Biography Very little is known with certainty about Simon Stevin's life, and what we know is mostly inferred from other recorded facts.E. J. Dijksterhuis (1970) ''Simon Stevin: Science in the Netherlands around 1600'', The Hague: Martinus Nijhoff Publishers, Dutch original 1943, 's-Gravenhage The exact birth date and the date and place of his death ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PETER (computer)
Peter may refer to: People * List of people named Peter, a list of people and fictional characters with the given name * Peter (given name) ** Saint Peter (died 60s), apostle of Jesus, leader of the early Christian Church * Peter (surname), a surname (including a list of people with the name) Culture * Peter (actor) (born 1952), stage name Shinnosuke Ikehata, Japanese dancer and actor * ''Peter'' (album), a 1993 EP by Canadian band Eric's Trip * ''Peter'' (1934 film), a 1934 film directed by Henry Koster * ''Peter'' (2021 film), Marathi language film * "Peter" (''Fringe'' episode), an episode of the television series ''Fringe'' * ''Peter'' (novel), a 1908 book by Francis Hopkinson Smith * "Peter" (short story), an 1892 short story by Willa Cather Animals * Peter, the Lord's cat, cat at Lord's Cricket Ground in London * Peter (chief mouser), Chief Mouser between 1929 and 1946 * Peter II (cat), Chief Mouser between 1946 and 1947 * Peter III (cat), Chief Mouser between 1947 a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
