Lear Siegler ADM3A VDU computer terminal from 1974

This is not a computer itself but a Visual Display Unit (VDU) so was actually a terminal used for interacting with a mini or mainframe computer through the 1970s to the 1990s. These were also dubbed "glass teletypes" as they gradually superceded the noisy & slow electromechanical teletypes during the 1970s. (see our Teleprinter & telex category) The ADM3A is still considered a design classic for its smooth rounded outline.

Prop ID: 1581