The Evolution of LEO, the World’s First Business Computer

October 29, 2020

October 29, 2020

2:00 pm To 5:00 pm

Online Only


Event Description

This webinar will be hosted on Zoom


John Daines


14:00 – Login and networking

14:30 Main presentation, Q&A and networking

17:00 – Close

This webinar will be hosted on Zoom


LEO, the world’s first business computer, that was built by J Lyons the caterer. The lecture will cover the business background to LEO’s development and how Lyons ended up manufacturing two further ranges of computers after LEO I. John will compare and contrast how LEO related to the “mainstream” developments from Ferranti, academia and research. He will also highlight some of the people involved and technical aspects.

The LEO Computers Society, in partnership with the Centre for Computing History in Cambridge, has recently been awarded over £100k by the Heritage Lottery Fund for a first phase project to tell the LEO story.


BCS, The Chartered Institute for IT

About the Organizers

We are all responsible for ensuring technology-led change is safe and positive for everyone in society. At BCS we’re committed to meeting this responsibility under royal charter. That’s why we set the highest standards of professionalism and best practice in the industry, share knowledge, and develop skills and capability tuned to our evolving digital world. We’ve been supporting the technology industry since 1957 and our 73,000-strong membership spans 150 countries. Every member actively promotes IT professionalism and we provide them with career development opportunities and bring the community together to address the professional, ethical and economic challenges facing technology today.

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