Not mine exactly, but my 82 year old father was involved with the Atlas computer at Chilton from its very beginning up until the early 1970's.
http://www.chilton-computing.org.uk/...e/acl/p003.htm
In its day it was regarded as an extremely powerful machine. As a small boy I sometimes accompanied him to work and still have vivid memories of the place, especially the machine room and the tape deck/teleprinter room. We still have quite a lot of paperwork at home, and up in the loft are a few circuit boards. Don't think we still have any of the old punchcards though, I also used to play with them when I was small, there were always plenty of of old ones that could be bought home, likewise the punched paper tape rolls. These used to be mainly bright pink or yellow!
Regards
Philip