Although we do not have a working model of a GEC 4000 computer, we have been lucky to obtain electronic copies of the following documentation.
Just click on the following files to get the PDF file
The arrival of the more powerful 16-bit 4000 series is 1973 gave GEC Computers a basis for a much wider attack on
the market. The opportunity to build on the 4000 series was helped by two important
factors - public sector bodies, such as the Post Office and universities, are
directed to buy British; and it had a ready made market within the GEC group,
whose members are encouraged, although not compelled, to buy from GEC Computers.
GEC Computers traditionally has strong links with the university market,
providing front-end computers for the ICL 1900as well as stand-alone machines. More recently its involvement with the EPSS
packet-switching system and Prestel have involved a number of Post Office contracts for 4000s. the order
book for 4000s stands at 260 systems with 200 installed.
Links for further information:
We gratefully thank Mr Alan Harradence - Senior IT Technician at the Sir George Monoux College in Walthamstow, East London - for the data and information