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System software, or systems software, is computer software designed to provide a platform to other software.[1] Examples of system software include operating systems, computational science software, game engines, industrial automation, and software as a service applications.[2] In contrast to system software, software that allows users to do things like create text documents, play games, listen to music, or surf the web is called application software.[3] In the early days of computing most application software was custom-written by computer users to fit their specific hardware and requirements. In contrast, system software was usually supplied by the manufacturer of the computer hardware and was intended to be used by most or all users of that system. The line where the distinction should be drawn is not always clear. Many operating systems bundle application software. Such software is not considered system software when it can be uninstalled usually without affecting the functioning of other software. Exceptions could be e.g. web browsers such as Internet Explorer
Internet Explorer
where Microsoft
Microsoft
argued in court that it was system software that could not be uninstalled. Later examples are Chrome OS
Chrome OS
and Firefox OS
Firefox OS
where the browser functions as the only user interface and the only way to run programs (and other web browser can not be installed in their place), then they can well be argued to be (part of) the operating system and hence system software. Another borderline example is cloud based software. This software provides services to a software client (usually a web browser or a JavaScript application running in the web browser), not to the user directly, and is therefore systems software. It is also developed using system programming methodologies and systems programming languages. Yet from the perspective of functionality there is little difference between a word processing application and word processing web application.

Contents

1 Operating systems or System control programs 2 Utility software or system support programs 3 See also 4 References 5 External links

Operating systems or System control programs[edit] The operating system (prominent examples being Microsoft
Microsoft
Windows, macOS, Linux, and z/OS), allows the parts of a computer to work together by performing tasks like transferring data between memory and disks or rendering output onto a display device. It provides a platform (hardware abstraction layer) to run high-level system software and application software. A kernel is the core part of the operating system that defines an API for applications programs (including some system software) and an interface to device drivers. Device drivers, including also computer BIOS
BIOS
and device firmware, provide basic functionality to operate and control the hardware connected to or built into the computer. A user interface "allows users to interact with a computer."[4] Either a command-line interface (CLI) or, since the 1980s a graphical user interface (GUI). Since this is the part of the operating system the user directly interacts with, it may be considered an application and therefore not system software. Utility software or system support programs[edit] For historical reasons, some organizations use the term systems programmer to describe a job function which is more accurately termed systems administrator. Software
Software
tools these employees use are then called system software. This so-called Utility software helps to analyze, configure, optimize and maintain the computer, such as virus protection. In some publications, the term system software also includes software development tools (like a compiler, linker or debugger).[5] See also[edit]

System programming Systems programming language IBM mainframe utility programs

System software of video game consoles

From Microsoft

Xbox 360 system software Xbox One system software

From Nintendo:

Wii system software Wii U system software Nintendo DSi system software Nintendo 3DS system software

From Sony:

PlayStation 3 system software PlayStation 4 system software PlayStation Portable system software PlayStation Vita system software PSP Go

References[edit]

^ "What is software? - Definition from WhatIs.com". Searchsoa.techtarget.com. Retrieved 2012-06-24.  ^ "Panel: Systems Programming in 2014 and Beyond". Microsoft. Retrieved 4 December 2015.  ^ W. W. Millner, Ann Montgomery-Smith (2000). Information and Communication technology for Intermediate Gnvq. p.126 ^ Daeryong, Kim. "Microcomputer Information Technology". Retrieved 2013-09-22.  ^ "What is systems software?". Webopedia.com. Retrieved 2012-06-24. 

External links[edit]

Wikiversity has learning resources about Introduction to Computers/System software

Sammet, Jean (October 1971). "Brief Survey of Languages Used for Systems Implementation". SCM SIGPLAN Notices. 6 (9): 1–19. doi:10.1145/942596.807055. 

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