Operating
system: -
An operating system (OS) is software, consisting of programs and data, which runs
on computers, manages computer hardware resources, and provides common services for execution of various application software. The
operating system is the most important type of system software in a computer system.
Without an operating system, a user cannot run an application program on their
computer, unless the application program is self booting.
According
to the American National Standards Institute- software which controls the
execution of a computer programs and which may provide scheduling, debugging,
input/output controls, accounting, compilation, storage assignment, data management
and related services.
The
functions of operating system-
Displays
the on screen element with which you interact- the user interface
Loads
programs into the computers memory so that you can use them.
Coordinates
how programs work with the computer’s hardware and other software.
Manages
the way information is stored on and retrieved from disc.
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