January 8, 1940: Bell Labs Complex Computer
Day in Tech History · 7 minutes ·

January 8, 1940: Bell Labs Complex Computer

January 8, 1940: Bell Labs Complex Computer

1940 – a full-scale relay calculator designed by Bell Labs engineer Dr. George Stibitz, becomes operational. The machine was first designed in February 1938, and construction began in April, 1939. Although the device was ready by October, 1939, it didn’t go into operation until this day. The Complex Computer used 400-450 binary relays and initially could […]

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