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Innovation

LB Bromley, a telex exchange system at Telephone House, 1965Next

LB Bromley, a telex exchange system at Telephone House, 1965

Technologies like the Teleprinter, which connected a mechanical keyboard and printer to a modem, allowed for the transmission of messages between machines over phone lines owned and operated by the General Post Office (GPO), but these could only communicate with machines of a similar nature.