Sinclair ZX81

Loading image. Please wait
Sinclair ZX81
Sinclair ZX81
Sinclair ZX81
Sinclair ZX81 - Startup


Specifications

  • Model Sinclair ZX81
    Type Home computer
    Released March 1981
    Processor NEC Z-80A @ 3.25MHz
    Memory 1 KB RAM, 8KB ROM
    Media External tape
    Sound 1 channel, 5 octaves
    Graphics 24 lines x 32 characters (text)

    64 x 44 pixels in graphics mode
    Ports Extension port
    Cassette tape
    RF television
    Power External Adapter
    Monitor -
    OS Spectrum Basic

    Sinclair ZX81

    The ZX81 is a home computer produced by Sinclair Research and manufactured in Scotland by Timex Corporation. It was launched in the United Kingdom in March 1981 as the successor to Sinclair's ZX80 and was designed to be a low-cost introduction to home computing for the general public. Read More