Difference Engine No.2, designed by Charles Babbage, built by Science Museum Computing & Data Processing 1991
Hollerith 45 column horizontal electrical sorting machine, 1920-1930 Computing & Data Processing 1920-1930
'Message Cam' mobile phone accessory with connector cable, 1999-2001 Computing & Data Processing 1999-2001
Piece from the London University Computing Service Atlas computer Computing & Data Processing c. 1964
Main portion of short mercury delay tube from the electronic computer EDSAC, 1946-1958 Computing & Data Processing 1946-1958