Released in 1981, the Sinclair ZX81 is often seen as the machine that started the UK home computer boom.

Title image
Manufacturer Sinclair
Processor Z80
Speed (MHz) 1
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
  • Expansion port (edge connector)
  • Cassette port

Related Images

ZX81 US advert 1
ZX81 US advert 1

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