UNIX Operating System and C Programming language

UNIX, which made the internet practical and which is the backbone for today’s many operating systems was developed in 1969 by a group of AT&T employees at Bell Labs.

The C language, which brought expressiveness and efficiency to the programming languages was developed by Dennis Ritchie between 1969 and 1973 at the Bell Laboratories. The descendants of C language are now the most widely used programming languages in the world.