UNIX is a older computer operating system which was developed in the 60’s and 70’s by AT & T employees at Bell Laboratories.UNIX operating systems where used in servers and work stations primarily by corporations and not counting the C programming language .
They are known as the UNIX philosophy and they include:
Mac OS X version 10.6.3 Snow Leopard (Mac computer with an Intel processor required)
* The use of text for storing data
* certain types of inter-process communication as files
* A hierarchical file system
* large number of small program that can be strung together through a command line interpreter using “pipes”

Under UNIX,the operating system is a large number of utilities with a master control program termed as the kernel.The kernel provides services to start and stop programs.UNIX has been the basis for many other offshoot operating systems including Linux and GNU.Most importantly, UNIX schedules access to hardware to avoid conflicts if two programs try to access the same resource or device simultaneously.The kernel was given special rights on the system.This divided the space into two sections: the user space and the kernel space.The UNIX is an operating system,used for larger mainframe computers as opposed to individual personal computers. The technology provided by the UNIX system led to other developments in computer mainframe and server technology.


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