This single story pre-fab was put up in about 1968. It was just in front of the Williams building. It was used to house the links to the mainframe systems that were installed elsewhere in the University of London. It housed its own PDP computer that I remember programming using little toggle switches at the front of the box. The building provided a study-space for computer science students and as well as providing links to the mainframe you could also pick up your printed output her. The Computer Science department remained based in Founders until they moved into the McCrea building in 1986.