LEO (1950)

Simon Fryer fryers at gmail.com
Mon Jul 16 17:53:27 CDT 2007



> (Actually, I'm not sure if LEO I was ever used outside of Lyons - I think it
> may have been the later LEO II that was their first true commercial machine)

The first LEO installed outside Lyons was LEO II/3 at the Stewarts and
Lloyds steelworks in Corby. It ran successfully from May 1958 to 1971!

If people are interested, the book, "A Computer Called LEO" by
Georgina Ferry, ISBN 1-84115-186-6 is a good read. I have it sat next
to my computer at the moment and it made a useful reference for the


"Well, an engineer is not concerned with the truth; that is left to
philosophers and theologians: the prime concern of an engineer is
the utility of the final product."
Lectures on the Electrical Properties of Materials, L.Solymar, D.Walsh

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