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System Software

System software is a collection of programs that controls the overall operations and
performance of the computer system. An operating system is an example of system software
without which a computer cannot work.

The computer is a wonderful machine but in order to work, it needs to put its components to
work and that is what the operating system does. As our body needs brain to perform all the
tasks. Similarly, an operating system is needed to operate a computer. An operating system
works as bridge between the computer and the user. An operating system also runs the
software on which we want to work like Microsoft Word, Paint, or your games. There are four
types system software.

1. Operating System

2. Utilities

3. Device drivers

4. Language translators

Operating System

Operating system is a software that coordinates computer resources. It also acts as an
interface between the user and the computer hardware and application software. Operating
system handles many technical details related to using the computer. Some examples of
operating system are Linux, Unix, Microsoft Windows, etc. An operating system must be able
perform the following functions:

1. Enabling startup application programs. Thus, the operating system must have:

a) A text editor Hardware Operating System
b) A translator
c) An editor of links Application User

2. The allocation of resources needed to execute programs is done by identifying: the
programs that are running, the need for memory, peripheral devices and data
protection requirements.

3. Facilities for data compression, sorting, mixing, cataloging and maintenance of libraries,
through utility programs available.

4. Plan implementation works according to certain criteria, for efficient use of central
processing unit.

5. Assisting implementation of programs through computer-user communication system,
at both hardware and software level.

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