Source Code Control System
Source Code Control System (SCCS) is an early version control system, geared toward program source code and other text files. It was originally developed in SNOBOL at Bell Labs in 1972 by Marc Rochkind for an IBM System/370 computer running OS/360 MVT. It was later rewritten by him in C for UNIX, then running on a PDP-11, and released with the Programmer's Workbench (PWB) edition of that operating system.