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Memotech
Memotech MTX512 computer Memotech was a British computer company founded by Geoff Boyd and Robert Branton in Witney in Oxfordshire, England. They started out during the early 1980s producing memory expansion packs ("RAMpacks") and other hardware expansions for the Sinclair ZX81. However, they eventually went on to develop and sell their own MTX family of computers in 1983. The range included the following models: MTX500, MTX512 and RS128. The MTX 512 was based on the Zilog Z80 processor. Although well-regarded, these computers were not commercially successful, and the company went into receivership in 1985. History In 1984, the Norwegian company Norbit Elektronikk Norge A/S run by A. S. Fiko developed a complete Input/Output (I/O) control system with 4× 16-bits by using the blue Memotech 8-bit Dual in-line package DIL socket for I/O controls. The socket was located on the computer motherboard. Norbit Elektronikk used their Super ToolBox system and was able to use 16-bits ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Memotech
Memotech MTX512 computer Memotech was a British computer company founded by Geoff Boyd and Robert Branton in Witney in Oxfordshire, England. They started out during the early 1980s producing memory expansion packs ("RAMpacks") and other hardware expansions for the Sinclair ZX81. However, they eventually went on to develop and sell their own MTX family of computers in 1983. The range included the following models: MTX500, MTX512 and RS128. The MTX 512 was based on the Zilog Z80 processor. Although well-regarded, these computers were not commercially successful, and the company went into receivership in 1985. History In 1984, the Norwegian company Norbit Elektronikk Norge A/S run by A. S. Fiko developed a complete Input/Output (I/O) control system with 4× 16-bits by using the blue Memotech 8-bit Dual in-line package DIL socket for I/O controls. The socket was located on the computer motherboard. Norbit Elektronikk used their Super ToolBox system and was able to use 16-bits ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Memotech MTX
The Memotech MTX500, MTX512 and RS128 are a series of Zilog Z80A processor-based home computers released by Memotech in 1983 and 1984. Design The MTX500 had 32 KB of RAM, the MTX512 had 64KB, and the RS128 had 128KB. Although the Z80A could only address a maximum of 64KB at a time, the MTX and RS128's extra memory, up to a maximum of 768KB, was accessible through the technique of page switching. All models had 24KB of ROM accessible in the first 16KB of address space. The extra 8KB of ROM was available through page switching. The ROM could be switched out entirely, allowing the full 16-bit address space to be used for RAM. The computers featured an all-aluminum case and full-size keyboard with real keys (unlike the chiclet keyboard used on the ZX Spectrum). In addition to the standard (for the time) BASIC language interpreter (with rudimentary windowing support and LOGO commands support), it included some other software: an assembler, the ''Panel'' disassembler/debugger a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Memotech MTX512 (Thomas Conté)
The Memotech MTX500, MTX512 and RS128 are a series of Zilog Z80A processor-based home computers released by Memotech in 1983 and 1984. Design The MTX500 had 32 KB of RAM, the MTX512 had 64KB, and the RS128 had 128KB. Although the Z80A could only address a maximum of 64KB at a time, the MTX and RS128's extra memory, up to a maximum of 768KB, was accessible through the technique of page switching. All models had 24KB of ROM accessible in the first 16KB of address space. The extra 8KB of ROM was available through page switching. The ROM could be switched out entirely, allowing the full 16-bit address space to be used for RAM. The computers featured an all-aluminum case and full-size keyboard with real keys (unlike the chiclet keyboard used on the ZX Spectrum). In addition to the standard (for the time) BASIC language interpreter (with rudimentary windowing support and LOGO commands support), it included some other software: an assembler, the ''Panel'' disassembler/debugger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apricot Computers
Apricot Computers was a British company that produced desktop personal computers in the mid-1980s. Outline Apricot Computers was a British manufacturer of business personal computers, founded in 1965 as "Applied Computer Techniques" (ACT), later changing its name to Apricot Computers, Ltd. It was a wholly owned UK company until it was acquired in the early 1990s by the Mitsubishi Electric Corporation. It was hoped that this acquisition would help them compete against Japanese PC manufacturers, in particular NEC which commanded over 50% of the Japanese market at the time. Mitsubishi eventually shut down the Apricot brand; a management buyout resulted in new company Network Si UK Ltd being formed. In 2008 a new, independent Apricot company was launched in the UK. Apricot was an innovative computer hardware company, whose Birmingham R&D centre could build every aspect of a personal computer except for the integrated circuits (chips) themselves; from custom BIOS and system-level pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acorn Computers
Acorn Computers Ltd. was a British computer company established in Cambridge, England, in 1978. The company produced a number of computers which were especially popular in the United Kingdom, UK, including the Acorn Electron and the Acorn Archimedes. Acorn's computer dominated the UK educational computer market during the 1980s. Though the company was acquired and largely dismantled in early 1999, with various activities being dispersed amongst new and established companies, its legacy includes the development of reduced instruction set computing (RISC) personal computers. One of its operating systems, , continues to be developed by RISC OS Open. Some activities established by Acorn lived on: technology developed by Arm (company), Arm, created by Acorn as a joint venture with Apple, Inc., Apple and VLSI Technology, VLSI in 1990, is dominant in the mobile phone and personal digital assistant (PDA) microprocessor market. Acorn is sometimes referred to as the "British Apple" and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinclair Research
Sinclair Research Ltd is a British consumer electronics company founded by Clive Sinclair in Cambridge. It was originally incorporated in 1973 as Westminster Mail Order Ltd, renamed Sinclair Instrument Ltd, then Science of Cambridge Ltd, then Sinclair Computers Ltd, and finally Sinclair Research Ltd. It remained dormant until 1976, when it was activated with the intention of continuing Sinclair's commercial work from his earlier company Sinclair Radionics, and adopted the name Sinclair Research in 1981. In 1980, Clive Sinclair entered the home computer market with the ZX80 at £99.95, at that time the cheapest personal computer for sale in the United Kingdom. In 1982 the ZX Spectrum was released, becoming the UK's best selling computer, and competing aggressively against Commodore and Amstrad. At the height of its success, and largely inspired by the Japanese Fifth Generation Computer program, the company established the "MetaLab" research centre at Milton Hall near Cambrid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operating System
An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources. For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware, although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it. Operating systems are found on many devices that contain a computer from cellular phones and video game consoles to web servers and supercomputers. The dominant general-purpose personal computer operating system is Microsoft Windows with a market share of around 74.99%. macOS by Apple Inc. is in second place (14.84%), and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsoft
Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services headquartered at the Microsoft Redmond campus located in Redmond, Washington, United States. Its best-known software products are the Windows line of operating systems, the Microsoft Office suite, and the Internet Explorer and Edge web browsers. Its flagship hardware products are the Xbox video game consoles and the Microsoft Surface lineup of touchscreen personal computers. Microsoft ranked No. 21 in the 2020 Fortune 500 rankings of the largest United States corporations by total revenue; it was the world's largest software maker by revenue as of 2019. It is one of the Big Five American information technology companies, alongside Alphabet, Amazon, Apple, and Meta. Microsoft was founded by Bill Gates and Paul Allen on April 4, 1975, to develop and sell BASIC interpreters for the Altair 8800. It rose to do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daewoo
Daewoo ( ; Hangul: , Hanja: , ; literally "great universe" and a portmanteau of "dae" meaning great, and the given name of founder and chairman Kim Woo-choong) also known as the Daewoo Group, was a major South Korean chaebol (type of conglomerate) and automobile manufacturer. It was founded on 22 March 1967 as Daewoo Industrial and was declared bankrupt on 1 November 1999, with debts of about US$50 billion (equivalent to $ billion in ). Prior to the 1997 Asian financial crisis, Daewoo was the second largest conglomerate in South Korea after the Hyundai Group. There were about 20 divisions under the Daewoo Group, some of which survived as independent companies. History Beginning and development The Daewoo Group was founded by Kim Woo-choong in March 1967. He was the son of the Provincial Governor of Daegu. He graduated from the Kyonggi High School, then finished with an Economics Degree at Yonsei University in Seoul. During the 1960s, after the end of the Syngman Rhee g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha Corporation
is a Japanese multinational corporation and conglomerate with a very wide range of products and services. It is one of the constituents of Nikkei 225 and is the world's largest musical instrument manufacturing company. The former motorcycle division was established in 1955 as Yamaha Motor Co., Ltd., which started as an affiliated company but later became independent, although Yamaha Corporation is still a major shareholder. History Nippon Gakki Co. Ltd. (currently Yamaha Corporation) was established in 1887 as a reed organ manufacturer by Torakusu Yamaha (山葉寅楠) in Hamamatsu, Shizuoka Prefecture and was incorporated on 12 October 1897. In 1900, the company started the production of pianos. The first piano to be made in Japan was an upright built in 1900 by Torakusu Yamaha, founder of Nippon Gakki Co., Ltd. — later renamed Yamaha Corporation. The company's origins as a musical instrument manufacturer are still reflected today in the group's logo—a trio of interloc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Oxford
, mottoeng = The Lord is my light , established = , endowment = £6.1 billion (including colleges) (2019) , budget = £2.145 billion (2019–20) , chancellor = The Lord Patten of Barnes , vice_chancellor = Louise Richardson , students = 24,515 (2019) , undergrad = 11,955 , postgrad = 12,010 , other = 541 (2017) , city = Oxford , country = England , coordinates = , campus_type = University town , athletics_affiliations = Blue (university sport) , logo_size = 250px , website = , logo = University of Oxford.svg , colours = Oxford Blue , faculty = 6,995 (2020) , academic_affiliations = , The University of Oxford is a collegiate research university in Oxf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
