ZX81
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The ZX81 is a home computer that was produced 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 designed to be a low-cost introduction to home computing for the general public. It was hugely successful; more than 1.5 million units were sold. In the United States it was initially sold as the ZX-81 under licence by Timex. Timex later produced its own versions of the ZX81: the Timex Sinclair 1000 and Timex Sinclair 1500. Unauthorized ZX81 clones were produced in several countries.
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.
Timex Group USA
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Timex Group USA, Inc. is an American global watch manufacturing company founded in 1854 as the Waterbury Clock Company in Waterbury, Connecticut. In 1944, the company became insolvent but was reformed into Timex Corporation. In 2008, the company was acquired by Timex Group B.V. and was renamed Timex Group USA.
Navy Terrier missile is controlled in flight through the stabilization system, provided by the U.S. Time–manufactured gyro