A man sitting in front of a computer consisting of 6 cabinets and two terminals.

Photograph © Science and Technology Facilities Council 1973, available from www.chilton-computing.org.uk* – image used with permission

DEC PDP-15

This Digital Equipment Corporation PDP-15 computer installation is very similar to the one we used at the Helsinki University of Technology in the '70s. The vector graphic display console on the left is a VT04 with a light pen and a digitizing tablet, on its right side is a Teletype 28 KSR terminal, and in the background the 18-bit PDP-15 itself with three DECtape drives.