Now recognised in the Guiness Book of World Records as the world's oldest working digital computer.
You can see the restored machine at The National Museum of Computing at Bletchley (TNMOC) - check the TNMOC visiting times
For more about the Harwell Computer
There is a good amount of original documentation about the computer and its use available online - along with many photos - see the CCS project pages, there is also a good Wikipedia entry.
These resources provide material for further study and historical investigation.
This restoration project is one of a number of active computer restoration projects being carried out by volunteer members of the CCS. You can find more about the CCS on this website, and meet people involved by coming to one of our CCS events, or visiting the machine at TNMOC in Bletchley.