ZX81
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The ZX81 is a home computer developed by Sinclair Research and manufactured in Dundee, Scotland, by Timex Corporation. It was launched in the United Kingdom in March 1981 as the successor to Sinclair'
Sinclair ZX81 PCB Revision 3 keyboard
Left side and rear views of the ZX81, showing its edge connector, the three input/output sockets (TV, EAR, MIC) and the 9 V DC power socket
The Sinclair Executive "slimline" pocket calculator (1972)
The Science of Cambridge MK14 (1978), sold in kit form, was Sinclair's first computer.
Sinclair Research
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Sinclair Research Ltd was a British consumer electronics company founded by Clive Sinclair in Cambridge in the 1970s. In 1980, the company entered the home computer market with the ZX80 at £99.95, at
ZX81
…The ZX81 is a home computer developed by Sinclair Research and manufactured in Dundee, Scotland, by Timex Corporation. It was launched in the United Kingdom in March 1981 as the successor to Sinclair's ZX80 and…
ZX Spectrum (1982)
Timex Sinclair 1000, a U.S. version of the Sinclair ZX81
ZX Spectrum 128, an updated version of the original 1982 ZX Spectrum
X1 Button Radio (1997)