System Software & Application Software (Cambridge (CIE) O Level Computer Science)
Revision Note
Written by: Robert Hampton
Reviewed by: James Woodhouse
System Software & Application Software
Software can be broken down in to two categories, system and application software
What is system software?
System software is software essential for the operation of the computer system
It gives users a platform to run applications and carry out tasks
Examples of system software include:
Utility software
Utility software
Utility software is software designed to help maintain, enhance and troubleshoot/repair a computer system
Designed to perform a limited number of tasks
Interacts with the computers hardware, for example, secondary storage devices
Some utility software comes installed with the operating system
Examples of utility software and their function are:
Defragmentation (maintain)
Compression (enhance)
Encryption (enhance)
Task manager (troubleshoot/repair)
What is application software?
Application software (abbreviated 'apps') is software chosen by a user to help them carry out a specific task
Installed on top of system software and is user chosen to best suit induvial requirements
Common categories of application software include:
Productivity - get things done efficiently (word processors, spreadsheets & presentation)
Communication - stay connected (email, browser, messaging)
Entertainment - Watch movies, play games or listen to music
Examiner Tips and Tricks
Do not use brand names when talking about software, it is ok to talk about software categories or software types but brand names do not get awarded marks
e.g. word processors instead in Microsoft Word
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