In the 1940s, there were two main schools of practical research into computers: there was the military camp, designing hardware for applications such as ballistics research, military cryptography, and planning the movements of men and machines across a newly imagined notional cold-war battlefield; and then there was the confectionery, baked-goods and frozen deserts camp, which recognised the tremendous potential of these new electronic brains for improving the effectiveness of our tasty tea-time treats. LEO--Lyon's Electronic Office--falls into the latter of these two camps.

In the fantastic new Museum of London galleries they have both a later-model LEO III, as used by the stock-jobbing firm of Wedd Durlacher Mordaunt and Co, and a recreation of the window from the Lyon's Corner House on Coventry Street, filled with Vorticist-styled "Lyon's Petits Fours" tins and the like. Both exhibits are in separate parts of the gallery--one in an area looking at how technology and new media have changed working London, the other looking at modernity in everyday London life in the 1920s.