The making of UNIX Operating System

UNIX

Unix quotation by Thompson and Ritchie

THE EARLY DAYS

CTSS

Compatible Time-Sharing System, CTSS, was developed at MIT under Project MAC. It was one of the first time-sharing operating systems, demonstrated in 1961 and was in use till 1973. CTSS was used on IBM 7094 and was "compatible" with standard batch processing OS for 7094, the Fortran Monitoring System (FMS); it ran a copy of FMS in background.… Read more