Timeline of Computer History

Manchester Mark I Williams-Kilburn tube

Manchester Mark I Williams-Kilburn tube

At Manchester University, Freddie Williams and Tom Kilburn develop the Williams-Kilburn tube. The tube, tested in 1947, was the first high-speed, entirely electronic memory. It used a cathode ray tube (similar to an analog TV picture tube) to store bits as dots on the screen’s surface. Each dot lasted a fraction of a second before fading so the information was constantly refreshed. Information was read by a metal pickup plate that would detect a change in electrical charge.

ESRB ratings

Entertainment Software Rating Board

“Model K” Adder

Bell Laboratories scientist George Stibitz uses relays for a demonstration adder

Pilot ACE

NPL Pilot ACE completed

I, Robot book cover

Isaac Asimov's I, Robot

Nintendo Entertainment System game console

Nintendo releases the Nintendo Entertainment System (NES) in the U.S.