Plaque

LEO - world's first business computer

Erection date: 29/11/2016

Inscription

LEO - Lyons Electronic Office - the world's first business computer was built and operated near here by J Lyons & Co.
Erected by LEO Computers Society 2016
www.LEO-computers.org.uk

Here's the video of the unveiling timed to commemorate 65 years of LEO. We believe the computer work took place in Kaevener House, on the Cadby Hall site.

Site: J. Lyons and Cadby Hall (3 memorials)

W14, Hammersmith Road, Lyons Walk

At this address: Cadby Hall, Hammersmith Road, Lyons had a huge site, with its head office, several bakeries, and an ice cream factory. This was all demolished in 1983.

The Lyons Walk plaque is at the centre of a circle of trees and empty tree pits (indicating lost trees). The LEO plaque is horizontal, at the centre of the middle of the 3 new, raised, red brick flower beds.

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

This section lists the subjects commemorated on the memorial on this page:
LEO - world's first business computer

Subjects commemorated i

Cadby Hall

In 1894 J. Lyons & Co. acquired Cadby Hall, an old piano workshop, which ...

Read More

J. Lyons & Co.

2019: We read the splendid Legacy by Thomas Harding published by Heinemann, a...

Read More

LEO - Lyons Electronic Office

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

Read More

This section lists the subjects who helped to create/erect the memorial on this page:
LEO - world's first business computer

Created by i

LEO Computers Society

From the Picture source: "This is the site of the LEO Computers Society celeb...

Read More

This section lists the other memorials at the same location as the memorial on this page:
LEO - world's first business computer

Also at this site i

Cadby Hall - 9 keystone heads - composers

Cadby Hall - 9 keystone heads - composers

Cadby Hall was built in 1873 as a piano factory. Our picture comes from Cadby...

Read More

Lyons Walk

Lyons Walk

We think there was a letter in front of the 'M' which has been lost. "LBH+F"...

Read More

Nearby Memorials

David Bowie tiles

David Bowie tiles

W4, Fisher's Lane

We could find no source for the Bowie quote but many websites give it, though normally with correct spelling and punctuation and with ".....

1 subject commemorated
PP - 2H - Pumping Works

PP - 2H - Pumping Works

EC1, Edward Street

This plaque was originally erected in 1902 at 3G but Watts incorrectly gave the date of the tragedy as 1885 instead of 1895, so when the ...

5 subjects commemorated, 2 creators
Great Central Railway Engineers Office Staff

Great Central Railway Engineers Office Staff

NW1, Melcombe Place, Marylebone Station

These 3 plaques are in the place previously occupied by the John Betjeman and Marylebone Station plaques, which have been moved to a loca...

War dead | WW1
6 subjects commemorated, 1 creator
Pebbles the station cat

Pebbles the station cat

EC1, Aldersgate Street, Barbican tube station

We must thank Londonist's Secrets of the Circle Line by Geoff Marshall for pointing this out to us.  The plaque is on the pillar in our p...

1 subject commemorated
D. H. Lawrence - Hampstead

D. H. Lawrence - Hampstead

NW3, Byron Villas, Vale of Health, 1

2025: The Standard reported on this flat being for sale, saying that the 2-bedroom ground floor flat was Lawrence's first residence in Lo...

1 subject commemorated, 1 creator

Previously viewed

Shells on Shell Centre

Shells on Shell Centre

SE1, York Road

We photographed these rather luscious shells thinking they probably came off another building belonging to the company, probably one they...

1 creator