HISTORY OF UNIX

• UNIX OS development was started in the year 1969 at the AT & T Bell Laboratory.

• Some of the team members were were withdrawn from the MULTICS Project  and started working on the UNIX OS.

• Thompson and Dennis Richie designed and developed a simple multi tasking OS supporting two users.

• It had an elegant file system, command interpreter and a set of utilities.

• One of the members named Brian suggested the name UNICS in the year 1970s.

BSD UNIX

• Berkley has worked on the UNIX OS that was developed by the AT & T Laboratory and created his own UNIX OS named, BSD UNIX.

• A student called Bill Joy defined a standard editor of the UNIX system, called as VI Editor that used C Shell.

• It has:

1. better file management
2. more versatile main features
3. better method for linking files