Scope and Contents This chapter is on computer printout paper and has numbered lines rather than page numbers. It is numbered Chapter 12: it is not clear whether there is a missing Chapter 11. In this chapter L J S discusses Titan, a third generation computer produced by International Computers and Tabulators (ICL) and in part designed in Cambridge. She describes the machine, its arrival at the Computer Laboratory, a ‘funeral for Edsac II’, and the increase of the Cambridge computing load under Titan,...