Unix
Operating System
In UNIX, the operating system is
broken into three pieces: the kernel, the shell, and the built-in utilities.
The kernel is responsible for low level hardware communication, the shell
provides human users with a user-friendly interface, and the built-in utilities
provide basic tools for doing work.
Kernel
•Heart
of The Unix OS.
•Collection
of C programs directly communicating with hardware
•Part
of Unix system loaded into memory when Unix is booted
Manages:-
1.System
resources
2.Allocates
time between user and processes
3.Decides
process priorities
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