Software (AQA GCSE Computer Science): Revision Note

Software

• Software can be further 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

• Without system software a user has no starting point for giving a computer instructions, system software gives users a platform to run applications and carry out tasks

• Essential functions carried out by system software include:

  • Booting up - talking to hardware in order to get it ready to be used

  • Device management - managing external hardware such as keyboards, printers etc.

  • Security - gives a layer of security to the hardware, preventing malware

What is application software?

• Application software (abbreviated 'apps') is software chosen by a user to help them carry out a specific task

• Application software is 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