Tag Archives: LEO 1

How did tea and cake help start a computing revolution?

Today (17 November) marks the 63rd anniversary of the LEO 1 (Lyons Electronic Office 1) computer, the first computer to be used in the workplace. 

In 1950 if you fancied a cup of tea or a piece of cake you might have gone to a Lyons tea shop. J Lyons & Company ran tea shops across Britain. But the company was also interested in improving the way its work was managed and conducted, so it decided to build a computer that could support the collection and analysis of this information. Brought to life on 17 November 1951, LEO I played a crucial role in the development of a new computer age.

Working with the team at the University of Cambridge that had built the EDSAC computer in 1949, Lyons developed the LEO I, assembling it at the Lyons main factory building in West London. The computer ran its first program on 5 September 1951, valuing the cost of goods that came out of the bakeries.

Leo I electronic computer, c 1960s

Leo I electronic computer, c 1960s

The company LEO Computers Ltd was formed in 1954 and went on to build LEO II and LEO III. These were installed in many British offices including those of Ford, Customs and Excise, the Inland Revenue and the Post Office. The later models were exported as far as Australia and South Africa.

You can find out more about the LEO computer in our Information Age gallery, which looks at the last 200 years of how communications technology has transformed our lives.

Calling former telephone operators!

Jen Kavanagh, Audience Engagement Manager, writes about the search for stories for our new Information Age gallery opening in October 2014. 

Calling former telephone operators!

We want to speak to the ladies who worked as telephone exchange operators in the 1950s and early 1960s, particularly around Enfield, London. We would like our visitors to be able to listen their memories alongside a display of the last manual telephone exchange in our Information Age gallery.

Before automated systems were introduced in the 1960s, phone calls were manually connected by young female telephone exchange operators. Their concentration, patience and friendly manner ensured calls were placed across the country and each telephone exchange developed into a small social community.

Manual Telephone Exchange Enfield, October 1960

Manual Telephone Exchange Enfield, October 1960. Image: Science Museum / Science & Society Picture Library

The last manual telephone exchange was in Enfield, north London, and marks the end of an era in communication history. A section of the Enfield Exchange forms a part of the Science Museum’s collection and will be put on display in the Information Age gallery. We would like to bring this amazing piece of history to life through the memories of the women who worked with the machine.

Do you know of anyone who worked as a telephone exchange operator? If so, we’d love to hear from you! Please visit www.sciencemuseum.org.uk/stories to get in touch.

Lyons Tea Shop Managers needed!

We are also looking to speak to Lyons tea shop managers that worked with Lyons Electronic Office (LEO I), the world’s first business computer, in the 1950s. Brought to life on 17 November 1951, LEO I played a crucial role in the development of a new computer age and we would love to hear from its female workforce. If you are a former manager (or relative), please get in touch.

Lyons Tea Shop Manager Alice Eleanor Bacon, 1897

Lyons Tea Shop Manager Alice Eleanor Bacon, 1897. Image: Peter Bird