It is a multi-user, multi-process computer operating system, derived from AT&T Unix developed at AT&T Bell Labs in the United States since the 1970s.

UNIX operating system is a powerful multi-user, multi-tasking operating system that supports multiple processor architectures. According to the classification of operating systems, it is a time-sharing operating system. It was first developed by Ken Thompson, Dennis Ritchie and Developed by Douglas McIlroy at AT&T's Bell Laboratories in 1969.

Currently its trademark rights are owned by the International Open Standards Organization. Only UNIX systems that match a single UNIX specification can use the name UNIX, otherwise they can only be called UNIX-like.

Extended information

History of Unix

In 1965, Bell Labs joined an agreement between General Electric and Massachusetts A plan jointly developed by the Institute of Technology (MIT); the plan is to build a multi-user, multi-tasking, multi-level (multi-user, multi-processor, multi-level) MULTICS operating system.

Until 1969, the MULTICS project was stopped because the work progress was too slow. At that time, Ken Thompson (later known as the father of UNIX) already had a program called "Star Trek" running on the GE-635 machine.

But the response was very slow. He happened to find an idle PDP-7 (Digital's host). Ken Thompson and Dernis Ritchie transplanted the "Star Trek" program to the PDP-7. .

Reference source? Baidu Encyclopedia-unix