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Provides user interface

The interface can be Character User Interface (CUI) or Graphical User Interface (GUI)
Runs applications through

Multitasking

Foreground and background applications

Utility Software
Utility software are provided as a part of the operating system. They are specifically designed

to manage the computer hardware, operating system and application software. Some of the
utility software are:
Backup Utility

Backup utility software or backup software is a computer program that copies your files, folders,
databases, or even your entire system for emergency. Windows Backup and Restore is the default
Windows backup utility.

Data Compression Program

It is used to compress a large file into a file of smaller size and can be transferred from one
computer to another so that it occupies less space and is easy to store. Winzip and Winrar are
examples of this software.

Winzip Winrar

Disk Defragmenter

The memory of a computer is divided into small blocks. The files are stored in continuous blocks
of space on the hard disk. When a file is deleted from the computer, a part of that space becomes
free. When a new file is saved on the computer, some part of it is saved on the first available
free space in the memory. After some time, the files get stored in various fragments which slows
down the speed of the computer. The Disk defragmenter organises the fragments of files into

continuous blocks to improve the performance of the computer.

Fragmented Disk Defragmented Disk

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