Category
page 1Defunct computer systems companies
Hewlett-Packard
The Hewlett-Packard Company, commonly shortened to Hewlett-Packard ( ) or HP, was an American multinational information technology company. It was founded by Bill Hewlett and David Packard in 1939 in a one-car garage in Palo Alto, California. Growing to become an influential high-tech powerhouse at the heart of Silicon Valley, the company was known for its progressive business philosophy, deemed the HP Way. HP developed and provided a wide variety of hardware components, as well as software and related services, to consumers, small and medium-sized businesses (SMBs), and fairly large companies

Toshiba
is a Japanese multinational electronics company headquartered in Saiwai-ku, Kawasaki, Kanagawa Prefecture. Its diversified products and services include power, industrial and social infrastructure systems, elevators and escalators, electronic components, semiconductors, hard disk drives, printers, batteries, lighting, as well as IT solutions such as quantum cryptography. It was formerly also one of the biggest manufacturers of personal computers, consumer electronics, home appliances, and medical equipment.
Sun Microsystems
defunct American computer hardware and software company
General Electric
American multinational conglomerate
Texas Instruments
American multinational semiconductor design and manufacturing company
Xerox
Xerox Corporation (, ) is an American corporation that sells printers, digital document products and services in more than 160 countries. Xerox was the pioneer of the photocopier market, beginning with the introduction of the Xerox 914 in 1959, so much so that the word xerox is commonly used as a synonym for photocopy. Xerox is headquartered in Norwalk, Connecticut, though it is incorporated in New York with its largest group of employees based around Rochester, New York, where the company was founded. As a large developed company, it is consistently placed in the list of Fortune 500 companies
Compaq
Compaq Computer Corporation was an American information technology company founded in 1982 that developed, sold, and supported computers and related products and services. Compaq produced some of the first IBM PC compatible computers, being the second company after Columbia Data Products to legally reverse engineer the BIOS of the IBM Personal Computer. It rose to become the largest supplier of PC systems during the 1990s. The company was initially based in Harris County, Texas.
Commodore International
former North American home computer and electronics manufacturer

Sanyo
() was a Japanese electronics manufacturer founded in 1947 by Toshio Iue, the brother-in-law of Kōnosuke Matsushita, the founder of Matsushita Electric Industrial, now known as Panasonic. Iue left Matsushita Electric to start his own business, acquiring some of its equipment to produce bicycle generator lamps. In 1950, the company was established. Sanyo began to diversify in the 1960s, having launched Japan's first spray-type washing machine in 1953. In the 2000s, it was known as one of the 3S along with Sony and Sharp. Sanyo also focused on solar cell and lithium battery businesses. In 1992,

NeXT
thumb|In the early 1990s, NeXT sold this complete NeXTstation.
NeXT, Inc. (later NeXT Computer, Inc. and NeXT Software, Inc.) was an American technology company headquartered in Redwood City, California, which specialized in computer workstations for higher education and business markets, and later developed the first dynamic web page software. It was founded in 1985 by Steve Jobs, the Apple Computer co-founder who had been removed from Apple that year. NeXT debuted with the NeXT Computer in 1988, and released the NeXTcube and smaller NeXTstation in 1990. The series had relatively limited sale
Digital Equipment Corporation
American manufacturer of minicomputers
Raytheon
Raytheon is a business unit of RTX Corporation and is a major U.S. defense contractor and industrial corporation with manufacturing concentrations in weapons and military and commercial electronics. Founded in 1922, it merged in 2020 with United Technologies Corporation to form Raytheon Technologies, which changed its name to RTX Corporation in July 2023.
Silicon Graphics
former American company
RCA Corporation
defunct American electronics company

Olivetti
Olivetti S.p.A. is an Italian manufacturer of computers, tablets, smartphones, printers and other such business products as calculators and fax machines. Headquartered in Ivrea, in the Metropolitan City of Turin, the company has been owned by TIM S.p.A. since 2003.
Micron Technology
American multinational corporation based in Boise, Idaho

Amstrad
Amstrad plc was a British consumer electronics company, founded in 1968 by Alan Sugar. During the 1980s, the company was known for its home computers beginning with the Amstrad CPC and later also the ZX Spectrum range after the Sinclair deal, which led it to have a substantial share of the home computer market in Britain. In the following decade it shifted focus towards communication technologies, and its main business during the 2000s was the manufacture of satellite television set-top boxes for Sky, which Amstrad had started in 1989 as the then sole supplier of the emerging Sky TV service.
Sinclair Research
British consumer electronics company
ViewSonic
ViewSonic Corporation is an American privately held multinational electronics company with headquarters in Brea, California, United States.
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Vestel
Vestel is a Turkish home and professional appliances manufacturing company consisting of 18 companies specialised in electronics, major appliances and information technology. Vestel's headquarters and production plant are located in Manisa, while since 1994 the company's parent conglomerate is the Istanbul-based Zorlu Holding.
Packard Bell
American multinational hardware and electronics corporation
Acorn Computers
British computer company founded in 1978
Remington Rand
American manufacturer
English Electric
former aerospace and defence company
Control Data Corporation
defunct supercomputer firm
Magnavox
Magnavox (often stylized as MAGNAVOX; from Latin magna vox ) is an American electronics brand that was founded in 1917. It was purchased by North American Philips in 1974, which was absorbed into Dutch electronics company Philips in 1987. The predecessor to Magnavox was founded in 1911 by Edwin Pridham and Peter L. Jensen, co-inventors of the moving-coil loudspeaker at their lab in Napa, California, under United States Patent number 1,105,924 for telephone receivers. Six decades later, Magnavox produced the Odyssey, the world's first home video game console.

Symbolics
thumb|100px|Symbolics 3600
Gateway
American multinational hardware and electronics corporation
Tandy Corporation
trading company
Be Inc.
American company
Micro Instrumentation and Telemetry Systems
American electronics company
VEB Robotron
East German manufacturer of computers and consumer electronics
Apollo Computer
developed and produced Apollo/Domain workstations in the 1980s

Kaypro
Kaypro Corporation was an American home and personal computer manufacturer based in Solana Beach, California, in the 1980s. The company was founded by Non-Linear Systems (NLS) to compete with the popular Osborne 1 portable microcomputer. Kaypro produced a line of rugged, luggable CP/M-based computers sold with an extensive software bundle which supplanted its competitors and quickly became one of the top-selling personal computer lines of the early 1980s.
Burroughs Corporation
company
Wang Laboratories
American computer company (1951–1999)
Bell & Howell
services company and former manufacturer of film machinery
Harris Corporation
former American technology company
Seattle Computer Products
company
Data General
American computer company
eMachines
eMachines was a brand of economical personal computers. In 2004, it was acquired by Gateway, Inc., which was in turn acquired by Acer Inc. in 2007. The eMachines brand was discontinued in 2013.
Sperry Corporation
company
Litton Industries
defense contractor in the United States
TRW Inc.
American corporation involved in mainly aerospace, electronics, automotive, and credit reporting, etc.
Thinking Machines Corporation
defunct supercomputer company

Spectravideo
Spectravideo International Limited (SVI) (printed as Spectra Video, with the space, in game manuals) was an American computer manufacturer and software house. It was originally called SpectraVision, a company founded by Harry Fox in 1981. The company produced video games and other software for the VIC-20 home computer, the Atari 2600 home video game console, and its CompuMate peripheral. Some of their own computers were compatible with the Microsoft MSX or the IBM PC.
Atari Corporation
computer and video game console manufacturer

Philco
Philco (an acronym for Philadelphia Battery Company) is an American electronics manufacturer headquartered in Philadelphia. Philco was a pioneer in battery, radio, and television production. In 1961, the company was purchased by Ford and, from 1966, renamed "Philco-Ford". Ford sold the company to GTE in 1974, and it was purchased by Philips in 1981, which became a subsidiary of the Dutch company Philips in 1987. In North America, the Philco brand is owned by Philips. In other markets, the Philco International brand is owned by Electrolux.
Tandem Computers
American computer hardware manufacturer ( 1974–1997)
Nixdorf Computer
company
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Elektronorgtechnica
thumb|Integrated circuits with the logo of Elektronorgtechnika
Elektronorgtechnica (also spelled Electronorgtechnica, ), better known abbreviated as ELORG (Элорг), was a state-owned organization with a monopoly on the import and export of computer support and hardware and software in the Soviet Union. It was controlled by the Ministry of Foreign Trade of the USSR from 1971 to 1989.

International Computers Limited
defunct British computer hardware, computer software and computer services company
Timex Sinclair
joint venture

Prime Computer
American producer of minicomputers (1972–1998)
Bendix Corporation
American manufacturing and engineering company (1924–1983)
Handspring
maker of Palm OS-based personal digital assistants
Eckert–Mauchly Computer Corporation
company
Luxor AB
Swedish home electronics and computer manufacturer located in Motala
Amdahl Corporation
American mainframe computer manufacturer
Tulip Computers
Dutch computer manufacturer