Viewdata 1100 (TM3) Users and Editors Manual

Two manuals operators manuals along with other operating instructions and documents for the TM-3 a private viewdata and intelligent editing system designed to be indentical to PRESTEL the UK Post Office messaging system which used a television set receiving messages via the telephone network.

The GEC Viewdata System was used by the Manchester Deptartment of Trade and Industry as a faster and more cost effective means of creating slides, and was also used to send messages and information around the country through networking system.