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ZX 81 (ZX81)

Sinclair Ltd. (United Kingdom)

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Name ZX 81 (ZX81) Sinclair Ltd. 
Manufacturer Sinclair Ltd. (United Kingdom) Type Desktop
Production start (mm-yyyy) 1981 Production end (mm-yyyy) -
RAM 1Kb - 64Kb ROM 8Kb
CPU Z80A - 3.5 Mhz
Operating System
Text (Cols x Rows) 32 x 22
Graphics 64 x 44
Storage memory Tape
Serial port Parallel port
Others port TV, System Bus
Original price   Currency original price 150 USD
Units sold
Configurations $100 in kit 
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Users' comments

User Date Text
Will Cooke 27/02/2021 00:30:56 Assembled mine from the kit that was available in the US for a short time before Timex started selling the 2K version. I still have it. My first computer. Good times!

Are there some errors? Do you have other info? .

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