LEO editor

Dr Robert Pepper, Vice President – Global Technology Policy, Cisco

Pinkerton Lecture Internet of Everything

Intriguing History Website cites “the very brave and innovative decision to promote
the development and use of commercial computers” taken by the Board of J. Lyons & Co.
in 1947. See http://www.intriguing-history.com/leo-computer-jlyons-co/

Wikiwand Website provides a brief history of LEO including bibliography and links.
See http://www.wikiwand.com/en/LEO_(computer)

Marconi maintain a Marconi History website which includes a section devoted to
LEO Computers and is regularly updated with news from the LEO Computers Society.
Access is restricted to password holders including Frank Land,
marconiincomputersandautomation

collects and records information about early
transistor computers, including LEO III – see
http://www.wylie.org.uk/technology/computer/LEO3/LEO3.htm
Broken Link

Thornhill, T., Daily Mail, (2011), LEO the world’s first business computer celebrates its
60th birthday, a comprehensive ‘obituary’ of the Lyons LEO enterprise retrieved by Neville
Lyons from the London Metropolitan Archives and published 18th November 2011.. XXX1019
Read more:
http://www.dailymail.co.uk/sciencetech/article-2063320/LEO-worlds-business-celebrates-60th-birthday.html#ixzz34oXECD52

The I love ICL Website http://www.vintage-icl-computers.com/icl3a holds a
collection of documents including LEO III Intercode and CLEO training manuals.
These include the following:
LEO III Paperwork at: http://www.vintage-icl-computers.com/icl2n
LEO 326 11 Mag Tape boards at: http://www.vintage-icl-computers.com/icl44fc
LEO III 3 Boards at: http://www.vintage-icl-computers.com/icl41
LEO III 1 Tape , 211 LEO II/III Tapes and 1 Tape front at http://www.vintage-icl-computers.com/icl42

http://www.vintage-icl-computers.com/icl42

http://www.vintage-icl-computers.com/icl42b
The site is maintained by Pete Wooledge a member of the LEO Computers Society,
who notes (December 2020) “212 LEO II/III Tapes and 1 Tape front at: http://www.vintage-icl–computers.com/icl42
The Museum Collection here is now lucky enough to have 212 of these LEO Computers Ltd Tapes!!!
The separate EEL type of tape turns out to be for the EE KDF 9 computer and not the LEO.
Also the count for the marked LEO tapes was one over making 210 but as luck would have it 2 more
marked LEO tapes arrived making it 212 plus the KDF 9 tape. Some good news is that Delwyn Holroyd and others at TNMoC are to attempt the reading of these tapes when the Pandemic permits.
We all hope that some interesting DATA can be saved from these tapes”.
tabbs-firefly@outlook.com
Picture of KDF9 at Hartree House and 1947 book by Hartree can be found at
www.vintage-icl-computers.com/icl2acs

LEO II at Stewart and Lloyds, Corby Heritage Centre: Exhibition of LEO
memorabilia and the story of the first LEO delivered to a customer held at Corby in
July/August 2015. Exhibition entitled Corby & Electronic
Brain
Also a description of the system at Ravenscraig