Early microcomputers

computer model built by Apple

The Sinclair ZX80 is a home computer launched on 29 January 1980 by Science of Cambridge Ltd. (later to be better known as Sinclair Research). It was one of the first computers available in the United Kingdom for less than a hundred pounds. It was available in kit form for £79.95, where purchasers had to assemble and solder it together, and as a ready-built version at £99.95.

The TRS-80 Micro Computer System (TRS-80, colloquially known as the "Trash-80", later renamed the TRS-80 Model I to distinguish it from its successors) is a desktop microcomputer developed by American company Tandy Corporation and sold through their Radio Shack stores. Launched in 1977, it is one of the earliest mass-produced and mass-marketed retail home computers. The name is derived from Tandy Radio Shack Z80, referring to its Zilog Z80 8-bit microprocessor.

computer terminal

thumb|right|KIM-1 computer in operation

Early computer bus

microcomputer model

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.

thumb|upright=1.2|A program running in a Kenbak-1 IDE/emulator. Click to start animation. Note that the program's sole use is to show lights being shifted. thumb|Kenbakuino, an Arduino-based Kenbak-1 emulator

Micral is a series of microcomputers produced by the French company Réalisation d'Études Électroniques (R2E), beginning with the Micral N in early 1973. The Micral N was one of the first commercially available microprocessor-based computers.

home computer

digital data format for audio cassette drives

early line of personal computers

The MK14 (Microcomputer Kit 14) was a computer kit sold by Science of Cambridge of the United Kingdom, first introduced in 1977 for £39.95. The price was very low for a complete computer system at the time, and Science of Cambridge eventually sold over fifteen thousand kits.

thumb|The July 1974 issue of Radio-Electronics: "Build The Mark-8: Your Personal Minicomputer".

thumb|upright|AIM-65 thumb|right|Comelta Drac-1 thumb|right|Comelta Drac-1 and expansion box thumb|right|Back of expansion box

computer model by Multitech (later Acer)

computer model by Multitech (later Acer)

series of home computers

microcomputer

early microcomputer from NorthStar Computers

8-bit microprocessor

video terminal that could display text on a standard television set

Cromemco, Inc. was a Mountain View, California microcomputer company known for its high-end Z80-based S-100 bus computers and peripherals in the early days of the personal computer revolution.

early 8-bit microcomputer

The MCM/70 is a pioneering microcomputer first built in 1973 in Toronto, Ontario, Canada, and released the next year. This makes it one of the first microcomputers in the world, the second to be shipped in completed form, and the first portable computer. The MCM/70 was the product of Micro Computer Machines, one of three related companies set up in Toronto in 1971 by Mers Kutt. It is considered by some historians to be the first usable personal microcomputer system.

The Nascom 1 and 2 were single-board computer kits issued in the United Kingdom in 1977 and 1979, respectively, based on the Zilog Z80 and including a keyboard and video interface, a serial port that could be used to store data on a tape cassette using the Kansas City standard, and two 8-bit parallel ports. At that time, including a full keyboard and video display interface was uncommon, as most microcomputer kits were then delivered with only a hexadecimal keypad and seven-segment display. To minimize cost, the buyer had to assemble a Nascom by hand-soldering about 3,000 joints on the single

single board microcomputer

thumb|right| SCELBI computer, showing card cage construction and front panel toggle switches and LEDs. SCELBI was an early model of microcomputer based on the Intel 8008 processor. The company SCELBI (derived from SCientific-ELectronics-BIology) Computer Consulting in 1973, by Nat Wadsworth. The SCELBI 8H was marketed in 1974 and was delivered either as an assembled unit or as a kit, with five basic circuit boards and provision for memory expansion to 16 KB (16,384 bytes). The company offered input/output devices including a keyboard, teleprinter interface, alphanumeric oscilloscope inter

computer of the business Heathkit in Kit form

The SYM-1 is a single board "trainer" computer produced by Synertek Systems in 1975. It was designed by Ray Holt. Originally called the VIM-1 (Versatile Input Monitor), that name was later changed to SYM-1.

1977 microcomputer

The NE-Z80 was a homebuilt computer kit presented by Nova Eletrônica magazine on the October 1981 issue, a publication that was part of the Brazilian Prológica group.

American computer company existing between 1976 and 1984