# Cambridge museum celebrates 75 years since LEO’s first business application

- URL: https://talkfuse.com/story/leo-gets-a-birthday-bash-75-years-after-clocking-in/
- Published: 2026-11-15T09:03:00+00:00
- Updated: 2026-11-15T09:19:35+00:00
- Original publisher: The Register
- Original article: https://www.theregister.com/offbeat/2026/11/15/leo-gets-a-birthday-bash-75-years-after-clocking-in/5308806
- Topics: Art, Culture, Entertainment, Film

## Key points

- LEO’s first commercial application ran in 1951.
- Cambridge museum event takes place on 28 November.
- Activities include films, family events and Python coding.

## Summary

Cambridge’s Centre for Computing History will mark 75 years since LEO ran its first commercial application with a public event on 28 November. The celebration highlights the machine’s place in the beginnings of business computing and the people who developed and programmed it.

LEO, the Lyons Electronic Office, was based on Cambridge University’s EDSAC, which ran its first programme in May 1949. The museum event runs from 10am to 5pm, with films, historical displays and activities for children aged 5 to 7, as well as Python coding for 12 to 16-year-olds. Tickets cost £10 for students and concession visitors, while family tickets start at £15.

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Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.