Concept    From 1951 

LEO - Lyons Electronic Office

Categories: Commerce, Science

The world's first business computer was built and operated by J. Lyons & Co.

The LEO website provides:
In October 1947, the directors of J. Lyons & Company, a British catering company famous for its teashops but with strong interests in new office management techniques, decided to take an active role in promoting the commercial development of computers and build their own digital computer. In 1951 the LEO I computer was operational and ran the world's first regular routine office computer job. The company LEO Computers Ltd was formed in 1954 and went on to build Leo II and Leo III computers. LEO II computers were installed in many British offices, including Ford Motor Company, British Oxygen Company and the 'clerical factory' of the Ministry of Pensions & National Insurance at Newcastle. LEO lll computers were installed in Customs & Excise, Inland Revenue, The Post Office and in Australia, South Africa and Czechoslovakia. LEO Computers Ltd merged with the computer interests of English Electric in 1963 to form English Electric LEO, and later, English Electric Leo Marconi (EELM). Subsequent mergers eventually found LEO incorporated into ICL in 1968, whilst the Bureau operation, based at Hartree House, combined with Barclays to form Baric.

Hartree House occupied the upper floors of the Whiteley department store in Queensway and, following his death, was named for Douglas Hartree, a scientist who helped develop LEO.

Comments are provided by Facebook, please ensure you are signed in here to see them

This section lists the memorials where the subject on this page is commemorated:
LEO - Lyons Electronic Office

Commemorated ati

LEO - world's first business computer

Here's the video of the unveiling timed to commemorate 65 years of LEO. We be...

Read More

Other Subjects

Sir Frederick Wigan

Sir Frederick Wigan

Merchant based in Southwark. First treasurer of Southwark Cathedral. He had homes at Clare Lawn, Mortlake, and at Purland Chase in Ross, Herefordshire. This image shows Wigan's memorial in that ca...

Person, Commerce

1 memorial
William Hamley

William Hamley

Founded Hamleys toy shop. Born Cornwall.

Person, Children, Commerce

1 memorial
Raymond Montague Burton

Raymond Montague Burton

Led the modern development of Burtons Menswear, and was a generous benefactor of the Jewish Museum in London and the University of York. Identical twin to Arnold - see there for a photo of the 4 B...

Person, Commerce

2 memorials
Dame Bridget D'Oyly Carte DBE

Dame Bridget D'Oyly Carte DBE

Theatre manager. Born Suffolk Street, Pall Mall. Grand-daughter of Richard D'Oyly Carte. Became her father's heir at the age of 24 on the death of her brother in a motoring accident. She took an a...

Person, Commerce, Music / songs, Theatre

1 memorial
Gordon Victor Young

Gordon Victor Young

Businessman in the fish industry. "Who knew Billingsgate Market well and built up the family business, W. Young & Son." The quote is on the plaque but we can't trace it, or indeed, find out any...

Person, Commerce, Food & Drink, Politics & Administration

1 memorial