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Solution switching at Research Laboratories, Martlesham Heath, Ipswich demonstrated by Dr Bimal Nayar, executive engineer. 1989.
Post Office computer processing punched data entry cards. 1969.
Workshop, Whitehall Telephone Exchange. 1944.
Picture telegraph (facsimile) equipment, Central Telegraph Office, London. 1948.
ERNIE premium bonds computer , Lytham St Annes. 1968.
Post Office Elliott 503 computer room. 1969.
Tommy Flowers with thermionic valves used in Colossus and its modern equivalent. 1985.
Hughes printing telegraph instrument at the Central Telegraph Office, London. 1934.
Telephone dial durability testing, Dollis Hill Research Station. 1935.
First telephone exchange switchboard in the UK, Coleman St, City of London. 1879.
Making repeaters (amplifiers) for the 1st transatlantic telephone cable. 1955.
Research engineer working with integrated solid circuit semi-conductors. 1968.
Computer visual display unit, Camelford House, London.1970.