The National Museum of Computing

The National Museum of Computing

Established	2007
Location	Bletchley Park, UK
Coordinates	51°59′55″N 0°44′37″W / 51.9985°N 0.7435°W / 51.9985; -0.7435
Website	tnmoc.org

The National Museum of Computing is a UK-based museum that is dedicated to collecting and restoring historic computer systems, and is home to the world's largest collection of working historic computers.^[1] The museum is located on Bletchley Park in Milton Keynes, Buckinghamshire.^[2] It opened in 2007 in Block H – the first purpose-built computer centre in the world, having housed six of the ten Colossus computers that were in use at the end of World War II.

As well as first generation computers including the original Harwell Dekatron computer – the world's oldest working digital computer ^[3] – Mainframe computers of the 1950s, 60s and 70s, the Museum houses an extensive collection of personal computers and a classroom full of BBC Micros. It is available for corporate, group, school, and individual visitors.

Although located on the Bletchley Park 'campus', The National Museum of Computing is an entirely separate registered charity^[4] with its own admission fee. It receives no public funding and relies on ticket sales and the generosity of donors and supporters. In 2024 it was awarded full accreditation as a Nationally-styled museum by Arts Council England.