Sinclair

ZX81

1981 · United Kingdom · 1 KB

The ZX80’s successor: the same kilobyte of memory, but cheaper and simpler to build. The ZX81 made Sinclair a mass-market brand and paved the way for the Spectrum.

Journey234 Public domain Wikimedia Commons

Specifications

Year

1981

Manufacturer

Sinclair Research

Country

United Kingdom

CPU

Zilog Z80A · 3.25 MHz

RAM

1 KB

ROM

8 KB

Video

64×48 · block graphics, monochrome

Sound

None

Storage

Cassette

Keyboard

Membrane

Mass

unknown

Gallery

We don’t have any further photos of this machine yet. If you have a freely licensed one, please get in touch.

Sources

Sinclair ZX81 — Centre for Computing History — computinghistory.org.uk
ZX81 — Wikipedia — en.wikipedia.org