Project Blog

 
30th November 1951 - a momentous day! 30th November 1951 - a momentous day!

16th November 2021

It was in November 1951 that the ‘electronic calculator’ that Lyons had been developing for some time actually started its working career after months of trials and experimental runs.

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The mystery of the menu The mystery of the menu

25th October 2021

In 1951 LEO staff enjoyed a celebratory dinner at the Trocadero restaurant in London.

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Searching the sources Searching the sources

20th October 2021

Building the Virtual version of the LEO I installation at Cadby Hall has involved a lot of research, particularly with photographs and analysing minute detail on old grainy black and white photographs.

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LEO Catalogue Update: 26th July 2021 LEO Catalogue Update: 26th July 2021

26th July 2021

Since our previous update, the following material has now been scanned, catalogued and uploaded: Ernest Lenaerts papers The LEO project is very fortunate to have gathered material relating to another...

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LEO Catalogue Update: 22nd June 2021 LEO Catalogue Update: 22nd June 2021

22nd June 2021

Since our previous update, the following material has been scanned, catalogued and uploaded: David Caminer papers - Lecture notes series I have continued work on the papers of LEO programming pioneer...

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Making the digital in an analogue world Making the digital in an analogue world

9th June 2021

In the last VR-related blog post, I pointed to the LEO I half adder that is in store at the Birmingham Museum.

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LEO Catalogue Update: 8th April 2021 LEO Catalogue Update: 8th April 2021

8th April 2021

Since our previous update, the following material has been scanned, catalogued and uploaded: David Caminer papers I have continued work on the papers of LEO programming pioneer David Tresman Caminer.

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LEO Women on International Women's Day 2021 LEO Women on International Women's Day 2021

5th March 2021

As we approach International Women's Day (IWD) on 8th March 2021, we are looking forward to celebrating LEO's history in a very modern way using a technology that is helping us all through the current global pandemic - via Zoom (video conferencing).

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LEO Catalogue Update: 24th February 2021 LEO Catalogue Update: 24th February 2021

24th February 2021

Since the previous update, the following material has been scanned, catalogued and uploaded: David Caminer papers I have been focussing on the significant collection of material gathered by LEO progra...

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2021: An Anniversary Year 2021: An Anniversary Year

12th February 2021

This year promises to be chock-full of anniversaries of landmark events in LEO's history.

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LEO Catalogue Update: 27th January 2021 LEO Catalogue Update: 27th January 2021

28th January 2021

Since the previous update, the following has been scanned, catalogued and uploaded: From Peter Bird's Research Collection: LEO Computers Ltd, Company Secretary's Papers, part 2 As reported in November...

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LEO Catalogue Update: 27th November 2020 LEO Catalogue Update: 27th November 2020

27th November 2020

Since our previous update, we have uploaded the following: BBC Newsreel Footage of LEO I, 16th Feb 1954 We've been very excited to find that in February 1954, the BBC made a short film of LEO I in ope...

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Who wants half an adder? Who wants half an adder?

25th November 2020

Deep inside the LEO 1 computer (and the one you are using to read this), there are electronic units called a 'half-adder'.

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LEO Catalogue Update: 22nd October 2020 LEO Catalogue Update: 22nd October 2020

22nd October 2020

In an interesting few weeks for the museum, we're feeling very fortunate to be able to continue with our LEO project relatively unscathed!

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LEO Catalogue Update: 18th September 2020 LEO Catalogue Update: 18th September 2020

18th September 2020

The LEO Computers Society (LCS) have tirelessly collected photographic evidence from throughout the life of the LEO computer, and we are currently focussed on sorting and cataloguing the photos they have gathered from many different sources.

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A room with a view A room with a view

16th September 2020

The J.Lyons LEO 1 computer was constructed and operated on the second floor of the WX Block at Cadby Hall, Hammersmith, London. The 'calculator room' was roughly 2,500 sq feet and had large sash win...

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LEO Catalogue Update: 4th September 2020 LEO Catalogue Update: 4th September 2020

4th September 2020

In this phase of the cataloguing, we are focussing on the extensive photo collection of Peter Bird.

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LEO Catalogue Update: 21st August 2020 LEO Catalogue Update: 21st August 2020

21st August 2020

In this phase of the cataloguing, we are focussing on the extensive photo collection of Peter Bird.

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LEO I:  The colour of the blues LEO I: The colour of the blues

16th August 2020

The colour of the blues: This is the fourth in a series of blogs about the use of the set of photographs of LEO I that will ultimately enable us to rebuild a virtual LEO.

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LEO I:  A story in photographs LEO I: A story in photographs

8th August 2020

Passing the 100: This is the third in a series of four blogs about the use of the set of photographs of LEO I that will ultimately enable us to rebuild a virtual LEO.

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LEO Catalogue Update: Photographs, 7th August 2020 LEO Catalogue Update: Photographs, 7th August 2020

7th August 2020

Following a hiatus for some internal processing, timetable development, admin and annual leave (!

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LEO I:  A story in photographs LEO I: A story in photographs

29th July 2020

A dating game: This is the second in a series of four blogs about the use of the set of photographs of LEO I that will ultimately enable us to rebuild a virtual LEO.

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LEO I:  A story in photographs LEO I: A story in photographs

22nd July 2020

First encounters: This is the first in a series of four blogs about the use of the set of photographs of LEO I that will ultimately enable us to rebuild a virtual LEO.

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The LEOmatic office - an enigma The LEOmatic office - an enigma

18th June 2020

We recently digitised a LEO report from 1958 with an interesting name - but as historians it has left us with more questions than answers!

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LEO Catalogue Update, 12th June 2020 LEO Catalogue Update, 12th June 2020

12th June 2020

The following LEO Computers Society archive files have been now been catalogued, digitised (where appropriate) and uploaded to the LEO pages here on the CCH website over the past fortnight.

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An exciting VR opportunity! An exciting VR opportunity!

29th May 2020

Phase 2 of our LEO I virtual reality project is now go!

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LEO Catalogue Update, 29th May 2020 LEO Catalogue Update, 29th May 2020

15th May 2020

The following LEO Computers Society archive files have been now been catalogued, digitised and uploaded to the LEO pages here on the CCH website over the past fortnight.

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LEO Catalogue Update, 15th May 2020 LEO Catalogue Update, 15th May 2020

15th May 2020

The following LEO Computers Society archive files have been now been catalogued, digitised and uploaded to the LEO pages here on the CCH website over the past fortnight.

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LEO Catalogue Update, 1st May 2020 LEO Catalogue Update, 1st May 2020

1st May 2020

The following LEO Computers Society archive files have been now been catalogued, digitised and uploaded to the LEO pages here on the CCH website over the past fortnight.

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LEO Catalogue Update, 17th April 2020 LEO Catalogue Update, 17th April 2020

17th April 2020

The following LEO Computers Society archive files have been now been catalogued, digitised and uploaded to the LEO pages here on the CCH website over the past fortnight.

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LEO Catalogue Update, 3rd April 2020 LEO Catalogue Update, 3rd April 2020

3rd April 2020

The following LEO Computers Society archive files have been now been catalogued, digitised and uploaded to the LEO pages here on the CCH website.

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GLAM Digital Lunch GLAM Digital Lunch

28th February 2020

Today we were pleased to present a lightning talk on the LEO project at the Cambridge University library.

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"Look Out You Typists!"

15th January 2020

As a growing number of companies investigated automation in the workplace, there was an understandable degree of uncertainty among staff - fears that people would be replaced by 'robots' were gleeful...

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BBC Witness History LEO broadcast BBC Witness History LEO broadcast

28th November 2019

Mike Lanchin from the BBC has made a wonderful short film about LEO, using footage and images from the LEO Society archive at CCH and including a new interview with Mary Coombs.

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Virtual LEO makes history again Virtual LEO makes history again

8th November 2019

Today we were incredibly honoured to have three people who worked on LEO I with us at CCH; Ray Shaw, Frank Land and Alan Jacobs.

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Mary Coombs - world's first female business programmer Mary Coombs - world's first female business programmer

10th October 2019

Today, on Ada Lovelace Day, we celebrated the many and varied contributions women have made to computing history and the roles they play now in today's computing industry; Mary Coombs was one of the women featured.

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Surprise in the Inbox Surprise in the Inbox

14th August 2019

Well look what dropped in to our inbox this morning!

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Tea, Cake & Computers was a success! Tea, Cake & Computers was a success!

10th August 2019

Today we gathered together LEO enthusiasts at CCH for a day of talks on Lyons & Co and their LEO computer.

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History in the Making! History in the Making!

9th August 2019

Today we watched history being made when LEO I and II engineer Ray Ivatt and Chair of the LEO Computers Society (LCS), Peter Byford, donned an Oculus Rift headset to see our prototype virtual reality LEO I.

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Museum of Cambridge Visit Museum of Cambridge Visit

2nd August 2019

A visit to the Museum of Cambridge has yielded some interesting photographs of the Lyons teashop that used to be on Petty Cury.

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LEO display now a permanent fixture LEO display now a permanent fixture

1st July 2019

Our permanent display on the history and development of LEO is now happily installed in the main gallery at the Centre for Computing History.

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Peter Bird's photographs: LEO Gremlin Peter Bird's photographs: LEO Gremlin

5th June 2019

One of the most substantial parts of the archive is the material gathered by LEO historian, Peter Bird, in preparation for his book LEO - The First Business Computer (Wokingham: Hasler, 1994).

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Archive shelving is IN Archive shelving is IN

11th April 2019

Thanks to the ingenuity, brute force and iron will of our dedicated volunteers, Keith and Dan, the LEO archive shelving is now properly installed and ready to receive boxes.

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LEO Computers Society Reunion LEO Computers Society Reunion

7th April 2019

Members of the LEO project team at CCH were delighted to attend the 2019 LEO Computers Society (LCS) Reunion at the Victory Services Club in London at the weekend.

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Volunteer roles Volunteer roles

8th March 2019

If you would like to be involved in the LEO project, we have many volunteer opportunities available.

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New Recruit New Recruit

13th December 2018

Today is a watershed moment for the project.

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Making the digital in analogue world Making the digital in analogue world

Unknown

In the last blog I pointed to the LEO I half adder that is in store at the Birmingham Museum.

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Making the digital in analogue world Making the digital in analogue world

Unknown

In the last blog I pointed to the LEO I half adder that is in store at the Birmingham Museum.

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