Keith Douglas "Toch"[3] Tocher (19 March 1921 – 30 December 1981) was a computer scientist known for contributions to computer simulation.
[5][1] In 1958, he worked for United Steel Companies under Anthony Stafford Beer,[1] and developed the first discrete-event simulation package, the General Simulation Program (GSP), a program that used a common structure to execute a range of simulations.
[4][6] He was appointed professor of operational research at the University of Southampton in 1980.
[5] He was awarded the silver medal of the Operational Research Society in 1967 and served as president from 1972–73.
[5] Tocher was also one of the creators of the SRT division algorithm that is used in the hardware of many modern computers.