Acorn Communicator

The Acorn Communicator is a business computer developed by Acorn Computers in 1985. The system sold in very low numbers to companies requiring a computer with a built-in modem. As a dedicated Prestel terminal with built-in word processing and spreadsheet capabilities, the Communicator found a niche market amongst travel agents in the United Kingdom and Italy, who used Prestel (and similar networks) as probably the earliest online booking service. The machine used the Ferranti-manufactured "Aberdeen" gate array developed for the Electron, which was the largest ULA ever developed at that time.