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History Of Computer Hardware In Eastern Bloc Countries
The history of computing hardware in the Eastern Bloc is somewhat different from that of the Western world. As a result of the CoCom embargo, computers could not be imported on a large scale from Western Bloc. Eastern Bloc manufacturers created copies of Western designs based on intelligence gathering and reverse engineering. This redevelopment led to some incompatibilities with International Electrotechnical Commission (IEC) and IEEE standards, such as spacing integrated circuit pins at of a 25 mm length (colloquially a "metric inch") instead of a standard inch of 25.4 mm. This made Soviet chips unsellable on the world market outside the Comecon, and made test machinery more expensive. History By the end of the 1950s most COMECON countries had developed experimental computer designs, yet none of them had managed to create a stable computer industry. In October 1962 the "Commission for Scientific Problems in Computing" (Комиссия Научные Вопро ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Bloc
The Eastern Bloc, also known as the Communist Bloc and the Soviet Bloc, was the group of socialist states of Central and Eastern Europe, East Asia, Southeast Asia, Africa, and Latin America under the influence of the Soviet Union that existed during the Cold War (1947–1991). These states followed the ideology of Marxism–Leninism, in opposition to the Capitalism, capitalist Western Bloc. The Eastern Bloc was often called the Second World, whereas the term "First World" referred to the Western Bloc and "Third World" referred to the Non-Aligned Movement, non-aligned countries that were mainly in Africa, Asia, and Latin America but notably also included former Tito–Stalin split, pre-1948 Soviet ally SFR Yugoslavia, which was located in Europe. In Western Europe, the term Eastern Bloc generally referred to the USSR and Central and Eastern European countries in the Comecon (East Germany, Polish People's Republic, Poland, Czechoslovak Socialist Republic, Czechoslovakia, Hungarian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Integrated Circuit
An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, usually silicon. Large numbers of tiny MOSFETs (metal–oxide–semiconductor field-effect transistors) integrate into a small chip. This results in circuits that are orders of magnitude smaller, faster, and less expensive than those constructed of discrete electronic components. The IC's mass production capability, reliability, and building-block approach to integrated circuit design has ensured the rapid adoption of standardized ICs in place of designs using discrete transistors. ICs are now used in virtually all electronic equipment and have revolutionized the world of electronics. Computers, mobile phones and other home appliances are now inextricable parts of the structure of modern societies, made possible by the small size and low cost of ICs such as modern computer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leningrad (computer)
The following is a list of clones of Sinclair Research's ZX Spectrum home computer. This list includes both official clones (from Timex Corporation) and many unofficial clones, most of which were produced in Eastern Bloc countries. The list does not include computers which require additional hardware or software to become ZX-compatible. Official The only official clones of the Spectrum were made by Timex. There were three models developed, only two of which were released: Timex Sinclair 2068 The Timex Sinclair 2068 or T/S 2068 (also known as TC 2068 or UK 2086) was a significantly more sophisticated machine than the original Spectrum. The most notable changes were the addition of a cartridge port, an AY-3-8912 sound chip, and an improved ULA giving access to better graphics modes. The T/S 2068 was produced for consumers in the United States, while very similar machines were marketed in Portugal and Poland as the Timex Computer 2068 (TC 2068) and Unipolbrit Komputer 2086 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scorpion (computer)
The following is a list of clones of Sinclair Research's ZX Spectrum home computer. This list includes both official clones (from Timex Corporation) and many unofficial clones, most of which were produced in Eastern Bloc countries. The list does not include computers which require additional hardware or software to become ZX-compatible. Official The only official clones of the Spectrum were made by Timex. There were three models developed, only two of which were released: Timex Sinclair 2068 The Timex Sinclair 2068 or T/S 2068 (also known as TC 2068 or UK 2086) was a significantly more sophisticated machine than the original Spectrum. The most notable changes were the addition of a cartridge port, an AY-3-8912 sound chip, and an improved ULA giving access to better graphics modes. The T/S 2068 was produced for consumers in the United States, while very similar machines were marketed in Portugal and Poland as the Timex Computer 2068 (TC 2068) and Unipolbrit Komputer 2086 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentagon (computer)
The Pentagon (Пентагон) home computer was a clone of the British-made Sinclair ZX Spectrum 128. It was manufactured by amateurs in the former Soviet Union, following freely distributable documentation. Its PCB was copied all over the ex-USSR in 1991-1996, which made it a widespread ZX Spectrum clone. The name "Pentagon" derives from the shape of the original PCB (Pentagon 48), with a diagonal cut in one of the corners. Many simple devices (upgrades) were invented to connect to the Pentagon with some soldering. Versions *Pentagon 48K (1989 by Vladimir Drozdov) *Pentagon 128K (1991) *Pentagon 128K 2+ (1991 by ATM) *Pentagon 128K 3+ (1993 by Solon) *Pentagon 1024SL v1.x (2005 by Alex Zhabin) *Pentagon-1024SL v2.x (2006 by Alex Zhabin) *Pentagon ver.2.666 (2009 by Alex Zhabin) The Pentagon 1024SL v2.3 included most of the upgrades of the standard Spectrum architecture, including 1024 KB RAM, Beta 128 Disk Interface and ZX-BUS slots (especially for IDE and General ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltica (computer)
The following is a list of clone (computer science), clones of Sinclair Research's ZX Spectrum home computer. This list includes both official clones (from Timex Sinclair, Timex Corporation) and many unofficial clones, most of which were produced in Eastern Bloc countries. The list does not include computers which require additional hardware or software to become ZX-compatible. Official The only official clones of the Spectrum were made by Timex Sinclair, Timex. There were three models developed, only two of which were released: Timex Sinclair 2068 The Timex Sinclair 2068 or T/S 2068 (also known as TC 2068 or UK 2086) was a significantly more sophisticated machine than the original Spectrum. The most notable changes were the addition of a cartridge port, an AY-3-8912 sound chip, and an improved Gate array, ULA giving access to better graphics modes. The T/S 2068 was produced for consumers in the United States, while very similar machines were marketed in Portugal and Poland a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hobbit (computer)
Hobbit (''Russian:'' ''Хоббит'') is a Soviet/Russian 8-bit home computer, based on the ZX Spectrum hardware architecture. Besides Sinclair BASIC it also featured CP/M, Forth or LOGO modes, with the Forth or LOGO operating environment residing in an on-board ROM chip. Overview ''Hobbit'' was invented by Dmitry Mikhailov ''(Russian: Дмитрий Михайлов)'' (all R&D) and Mikhail Osetinskii ''(Russian: Михаил Осетинский)'' (management) in Leningrad, Russia in the late 1980s. The original circuit layout was designed on a home-made computer (built in 1979 using ASMP of three KR580 chips - Soviet Intel 8080 clones), also created by Dmitry Mikhailov. The computer was manufactured by the joint venture ''InterCompex''. ''Hobbit'' was marketed in the former Soviet Union as a low-cost personal computer solution for basic educational and office needs, in addition to its obvious use as a home computer. Schools would use it on the classrooms, interconnecting s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZX Spectrum
The ZX Spectrum () is an 8-bit computing, 8-bit home computer that was developed by Sinclair Research. It was released in the United Kingdom on 23 April 1982, and became Britain's best-selling microcomputer. Referred to during development as the ''ZX81 Colour'' and ''ZX82'', it was launched as the ''ZX Spectrum'' to highlight the machine's colour display, which differed from the black and white display of its predecessor, the ZX81. The Spectrum was released as six different models, ranging from the entry level with 16 Kilobyte, KB RAM released in 1982 to the ZX Spectrum +3 with 128 KB RAM and built in floppy disk drive in 1987; altogether they sold over 5 million units worldwide (not counting List of ZX Spectrum clones, unofficial clones). The Spectrum was among the first home computers in the United Kingdom aimed at a mainstream audience, and it thus had similar significance to the Commodore 64 in the US and the Thomson MO5 in France. The introduction of the ZX Spect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fifth Generation Computer
The Fifth Generation Computer Systems (FGCS) was a 10-year initiative begun in 1982 by Japan's Ministry of International Trade and Industry (MITI) to create computers using massively parallel computing and logic programming. It aimed to create an "epoch-making computer" with supercomputer-like performance and to provide a platform for future developments in artificial intelligence. FGCS was ahead of its time and a commercial failure. FGCS contributed greatly to the field of concurrent logic programming. The term "fifth generation" was intended to convey the system as being advanced. In the history of computing hardware, computers using vacuum tubes were called the first generation; transistors and diodes, the second; integrated circuits, the third; and those using microprocessors, the fourth. Whereas previous computer generations had focused on increasing the number of logic elements in a single CPU, the fifth generation, it was widely believed at the time, would instead turn to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sofia
Sofia ( ; bg, София, Sofiya, ) is the capital and largest city of Bulgaria. It is situated in the Sofia Valley at the foot of the Vitosha mountain in the western parts of the country. The city is built west of the Iskar river, and has many mineral springs, such as the Sofia Central Mineral Baths. It has a humid continental climate. Being in the centre of the Balkans, it is midway between the Black Sea and the Adriatic Sea, and closest to the Aegean Sea. Known as Serdica in Antiquity and Sredets in the Middle Ages, Sofia has been an area of human habitation since at least 7000 BC. The recorded history of the city begins with the attestation of the conquest of Serdica by the Roman Republic in 29 BC from the Celtic tribe Serdi. During the decline of the Roman Empire, the city was raided by Huns, Visigoths, Avars and Slavs. In 809, Serdica was incorporated into the Bulgarian Empire by Khan Krum and became known as Sredets. In 1018, the Byzantines ended Bulgarian rule ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Groupe Bull
Bull SAS (also known as Groupe Bull, Bull Information Systems, or simply Bull) is a French computer company headquartered in Les Clayes-sous-Bois, in the western suburbs of Paris. The company has also been known at various times as Bull General Electric, Honeywell Bull, CII Honeywell Bull, and Bull HN. Bull was founded in 1931, as H.W. Egli - Bull, to capitalize on the punched card technology patents of Norwegian engineer Fredrik Rosing Bull (1882–1925). After a reorganization in 1933, with new owners coming in, the name was changed to Compagnie des Machines Bull (CMB). Bull has a worldwide presence in more than 100 countries and is particularly active in the defense, finance, health care, manufacturing, public, and telecommunication sectors. History Origins On 31 July 1919, a Norwegian engineer named Fredrik Rosing Bull filed a patent for a "combined sorter-recorder-tabulator of punch cards" machine that he had developed with financing from the Norwegian insurance comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicolae Ceaușescu
Nicolae Ceaușescu ( , ; – 25 December 1989) was a Romanian communist politician and dictator. He was the general secretary of the Romanian Communist Party from 1965 to 1989, and the second and last Communist leader of Romania. He was also the country's head of state from 1967, serving as President of the State Council and from 1974 concurrently as President of the Republic, until his overthrow and execution in the Romanian Revolution in December 1989, part of a series of anti-Communist uprisings in Eastern Europe that year. Born in 1918 in Scornicești, Ceaușescu was a member of the Romanian Communist youth movement. Ceaușescu rose up through the ranks of Gheorghe Gheorghiu-Dej's Socialist government and, upon Gheorghiu-Dej's death in 1965, he succeeded to the leadership of the Romanian Communist Party as general secretary. Upon his rise to power, he eased press censorship and openly condemned the Warsaw Pact invasion of Czechoslovakia in his speech on 21 August ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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