What Happened on February 4th

Ken Thompson (sitting) and Dennis Ritchie (standing) in front of a PDP-11 in 1972.
Ken Thompson (sitting) and Dennis Ritchie (standing) in front of a PDP-11 in 1972.
 
Ken Thompson Born
Kenneth Thompson, who with Dennis Ritchie developed UNIX at AT&T Bell Laboratories, is born. The UNIX operating system combined many of the timesharing and file management features offered by Multics, from which it took its name. (Multics, a projects of the mid - 1960s, represented the first effort at creating a multi-user, multi-tasking operating system.) The UNIX operating system quickly secured a wide following, particularly among engineers and scientists.