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Multi-user Operating System: In this type of operating system, multiple users can use the
computer at the same time. Examples of multi-user operating systems are Linux, Windows, etc.
Real Time Operating System: It provides certain capabilities like control machine, instruments
and industrial system within specified time period.
Programming Software
It is the software used by the computer to understand and convert the instructions written in
programming language into machine language. Compilers, assemblers, debuggers, interpreters,
etc. are examples of programming software.
Utility Software Clickipedia
Utility software are provided as a
part of operating system. They are Programming and Computer Software, founded in
specifically designed to manage the 1975, is devoted to provide solutions to problems
computer hardware, operating in all areas of computer science: operating systems,
compiler technology, software engineering, artificial
system and application software.
intelligence, etc.
Some of the utility software are:
Backup utility: It is used for keeping the backup files 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 so that it occupies less space and is easy
to store. WinZIP and WinRAR are examples of these software.
WinZIP WinRAR
Disk Defragmenter: The memory of a computer is divided into
Data Compression Program
small blocks. The files are stored in continuous blocks of space.
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
Fragmented Disk Defragmented Disk
continuous blocks to improve performance of the
Disk Defragmenter
computer.
Virus Scanner: It is used to scan the computer for viruses among
files and folders. It scans the disk each time you insert it into a
computer or whenever the computer is booted. It is also called
antivirus software. Quick Heal, Norton, etc. are examples of
Virus Scanner
these software.
Clickipedia
Booting is a process that loads the operating system and prepares the system for use.
Categories of Computers and Software 13

