Timeline of Computer History

Elektro and Sparko at the 1939 World’s Fair

Elektro at the World's Fair

Built by Westinghouse, the relay-based Elektro robot responds to the rhythm of voice commands and delivers wisecracks pre-recorded on 78 rpm records. It appeared at the World's Fair, and it could move its head and arms…and even "smoked" cigarettes.

Hewlett and Packard in their garage workshop

Hewlett-Packard is founded

David Packard and Bill Hewlett found their company in a Palo Alto, California garage. Their first product, the HP 200A Audio Oscillator, rapidly became a popular piece of test equipment for engineers. Walt Disney Pictures ordered eight of the 200B model to test recording equipment and speaker systems for the 12 specially equipped theatres that showed the movie “Fantasia” in 1940.

Manchester Mark I

Manchester Mark I completed

Denning Sentry robot

Denning Sentry robot

The Silver Arm

The Silver Arm

Image from RCA Spectra-70 brochure

RCA announces its Spectra series of computers

Sinclair ZX80

The Sinclair ZX80 introduced