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Computer History Museum

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Computer History Museum, Silicon Valley. The Museum holds and displays a number of LEO II relics including part of LEO II/3 the Corby Stewarts & Lloyds machine, and various LEO books and documents. Its record of holdings with photos is well organised and include the oral history of LEO veteran Chris Date.

LEO has an entry on the museum's website.

The museum's senior curator, Dag Spicer, is a member of the LEO Computers Society and its American correspondent. 

The Museum also holds a marketing film made for LEO and donated to the museum by John Pinkerton

More information about the LEO II/3 at Corby including 2 newspaper articles can be found in the museum's website. The catalogue lists these articles as 'The Review News: A Newspaper for the Employees of Stewarts and Lloyds Limited, no. 67, July 1957: front page article titled "Electronic Computer for Corby, 'LEO II' will make its bow within the year"; and Steel News: The Newspaper of the British Steel Corporation, no. 50, 15 July 1971: front page has article titled " After 13 years LEO is out of commission".

On 18 February 2021, Dag Spicer, senior curator of the Computer Museum and American correspondent of the LEO Computers Society, presented the history of the museum,  in particular its affection and holdings of material related to LEO.  Dag defined the Lyons/LEO story as a promontory in the evolution of computer use – a very apt definition.  

The presentation was via Zoom and finished with a question-and-answer session. A recording of Dag Spicer's presentation can be viewed on the LEO Computers Society website.

Please Note: This item is not in our collection and is included here for signposting purposes only.

Timeline for Computer History Museum :

Date Event
28 Sep 1925 Supercomputer pioneer Seymour Cray is born
1937 The Atanasoff–Berry Computer is first conceived
1942 The Atanasoff-Berry Computer is completed
4 Jul 1956 First keyboard used to input data
26 Feb 1957 FORTRAN-1 is formally published
23 Aug 1957 DEC is founded
16 Oct 1959 CDC 1604 is introduced
Nov 1960 DEC releases the PDP-1, the first mini-computer
Sep 1964 CDC 6600 is introduced
Nov 1964 DEC releases the PDP-7
1965 Wang Laboratories introduce the Wang 300 electronic calculator
22 Mar 1965 DEC releases the PDP-8
Aug 1966 DEC releases the PDP-9
1967 IBM begins development of the floppy disk
Sep 1967 DEC releases the PDP-10
25 Aug 1970 DEC introduces the PDP-8/E
17 Feb 1971 Intel announces the first EPROM
14 Oct 1971 DEC launches PDP-11/45 Giant Mini
1974 Gary Kildall creates the CP/M operating system
1 Jun 1975 DEC launches PDP-11/03
11 Jun 1978 Texas Instruments announces Speak & Spell
2 Nov 1988 Robert Tappan Morris launches the Morris computer worm
2 Oct 1992 Congress allows commercial networks to connect to the Internet
11 May 1997 IBM's Deep Blue beats Gary Kasparov at chess

Video Relating to Computer History Museum :


Computer History Museum



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