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• $99.95
1981 •

Sinclair ZX81

Introduced: March 1981
Price: US $149.95 assembled
US $99.95 in kit form
How many? 500,000 in first 12 months
Weight: 12 ounces
CPU: NEC Z-80A, 3.25MHz
RAM: 1K, 64K max
Display: 22 X 32 text
hooks to TV
Ports: memory, cassette
Peripherals: Sinclair thermal printer
OS: ROM BASIC

The Timex Sinclair 1000 is the North American version of the Sinclair ZX-81, from British based Sinclair Research Ltd. They are nearly identical, except for the name on the front, and minor motherboard layout differences.