Timex1981
Sinclair ZX81
Sinclair ZX81 is a home computer by Timex, from 1981. It runs Sinclair BASIC, is powered by the Zilog Z80A and weighs 350 g.
Z80Aprocessor
350 gweight
Sinclair BASICsystem
1981launch year
PredecessorSinclair ZX80SuccessorZX Spectrum
spec sheet
Sinclair ZX81 specifications
Everything recorded for this model, in one set of units. Missing rows mean the fact has not been recorded yet.
General
- Maker
- Timex
- Type
- Home computer
- Released
- 1981
- Discontinued
- 1984
- Launch price
- F 490
Platform
- Operating system
- Sinclair BASIC
- Processor
- Zilog Z80A
Body
- Weight
- 350 g
Source: Wikidata (CC0), compiled by the neXupchecked Oct 2026
Also built on the Zilog Z80A
| Model | Maker | Year | Type | Processor | System | Memory / storage | Weight |
|---|---|---|---|---|---|---|---|
| Xerox 820-II | Xerox | 1982 | desktop computer | Zilog Z80A | CP/M | 64 KB | — |
| Sinclair ZX Spectrum +2 | Amstrad | 1986 | home computer | Zilog Z80 | — | 128 KB | — |
| Philips VG-8020 | Philips | 1985 | home computer | Zilog Z80A | MSX-DOS | 64 KB | — |
| Kaypro 10 | Kaypro | 1983 | portable computer | Zilog Z80A | CP/M | — | — |
| Xerox 8/16 | Xerox | 1983 | desktop computer | Intel 8086 | CP/M | — | — |
| Video Genie III | EACA | 1982 | home computer | Zilog Z80A | CP/M | — | — |
| HC-2000 | ICE Felix Bucharest | 1992 | computer | Zilog Z80A | CP/M | — | — |
| Kaypro 1 | Kaypro | 1986 | portable computer | Zilog Z80A | CP/M | — | — |
8 models · linked names have a full spec sheet · click a column to sort