Sinclair ZX81
Released in 1981, the Sinclair ZX81 is often seen as the machine that started the UK home computer boom.
Manufacturer
Sinclair
Processor
Z80
Speed (MHz)
1.0
RAM (KB)
1
RAM expandable to (KB)
16
ROM (KB)
8
Sound
None
Keyboard type
Pressure sensitive
Number of keys
40
Dimensions (mm)
175x168x43
Weight (g)
300
Interfaces
- Expansion port (edge connector)
- Cassette port
Related Images
ZX81 US advert 1