Decimal Counting Tube from the LEO computer Decimal Counting Tube from the LEO computer Computing & Data Processing c. 1950
6 folders Papers relating to set-up and organisation of the LEO II computer and operators' training course
Deck of microprogram modules from a Leo III computer Deck of microprogram modules from Leo III computer Computing & Data Processing 1963
A Guide to Machine-Independent Computer Programming and Algol. An English Electric Leo Monograph by J. Boothroyd. Publication 1004. A Guide to Machine-Independent Computer Programming and Algol. An English Electric Leo Monograph by J. Boothroyd. Publication 1004.
Storage unit for LEO I, made by J Lyons and Company, England, 1950-1965 storage unit from LEO I, 1950-1965 Computing & Data Processing 1950-1965
Main portion of short mercury delay tube from the electronic computer EDSAC, 1946-1958 Computing & Data Processing 1946-1958
End plate assembly for a battery of mercury delay tubes from EDSAC 1, 1946-1958 Computing & Data Processing 1946-1948
'Message Cam' mobile phone accessory with connector cable, 1999-2001 Computing & Data Processing 1999-2001
Mercury delay line for LEO I, 10 inches long cylinder and 2 inches diameter, made by the Coventry Gauge and Tool Company for J Lyons and Company, England, 1950-1965 mercury delay line from LEO I, 1950-1965 Computing & Data Processing 1950-1965