Zuse of Germany creates the Z1, one of the first binary digital computers and a machine that could be controlled through a punch tape. 1939 -George Stibitz at Bell Telephone Laboratories completes the Complex Number Calculator, which uses Boolean logic to add, subtract, multiply, and divide complex numbers and also provides a foundation for digital computers. The first Radio Shack catalog is published. The company would later become famous for its profitable line of desktop printers. All rights reserved.
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