Operating System (OS) - Revision history

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User: An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.

2019-01-04T16:06:55Z

An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.

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An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. All computer programs, excluding firmware, require an operating system to function. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources.<ref>Operating System Definition [https://en.wikipedia.org/wiki/Operating_system Wikipedia]</ref>

[[File:Operating system.png|300px|Operating System]]<br />
source: [https://sites.google.com/site/operatingsystems10/home/server Google Sites - Operating System]

Without an operating system, a computer is just a collection of components heating up the room as no-one would be able to make any practical use of the machine. A large number of operating systems have been developed over the years; each designed with a certain kind of computer in mind. For instance:
*Windows or Linux - for personal computers
*MacOS, iOS- for Macs and iPhone and iPad
*Unix - for mainframes
*Symbian, Android - for mobile phones

Although these operating systems have been developed to work with very different types of computers, they all share a number of common functions:
*Providing a user interface
*Managing the computer's memory
*Managing the hardware<ref>What is an Operating System? [http://www.teach-ict.com/as_a2_ict_new/ocr/A2_G063/332_designing_systems/operating_systems/miniweb/index.htm Teach-ICT]</ref>

'''Classification of Operating systems'''<br />
*Multi-user: Allows two or more users to run programs at the same time. Some operating systems permit hundreds or even thousands of concurrent users.
*Multiprocessing : Supports running a program on more than one CPU.
*Multitasking : Allows more than one program to run concurrently.
*Multithreading : Allows different parts of a single program to run concurrently.
*Real time: Responds to input instantly. General-purpose operating systems, such as DOS and UNIX, are not real-time.

===See Also===
[[Desktop_Operating_System|Desktop Operating System]]<br />
[[Mobile_Operating_System|Mobile Operating System]]<br />
[[Server_Operating_System|Server Operating System]]

===References===
<references />

===Further Reading===
*Computer Basics: Understanding Operating Systems [http://www.gcflearnfree.org/computerbasics/understanding-operating-systems/1/ gcflearnfree.org]
*Operating System Definition & Examples [https://www.lifewire.com/operating-systems-2625912 Livewire]
*Operating System - Overview [https://www.tutorialspoint.com/operating_system/os_overview.htm Tutorialspoint]
*How Operating Systems Work [http://computer.howstuffworks.com/operating-system.htm How Stuff Works]
*What is Operating System [http://whatis.techtarget.com/definition/operating-system-OS Techtarget]

← Older revision		Revision as of 14:22, 17 July 2023
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	*[[Server Operating System]]		*[[Server Operating System]]
	*[[Disk Operating System (DOS)]]		*[[Disk Operating System (DOS)]]
		+	*[[Network Operating System (NOS)]]

@@ Line 1: / Line 1: @@
-An operating [[system]] (OS) is system [[software]] that manages [[computer]] [[hardware]] and software resources and provides common services for computer programs. All computer programs, excluding firmware, require an operating system to function. Time-sharing operating systems schedule tasks for efficient use of the system and may also include [[accounting]] software for cost allocation of processor time, mass storage, printing, and other resources.<ref>Operating System Definition [https://en.wikipedia.org/wiki/Operating_system Wikipedia]</ref>
+An '''operating system (OS)''' is system software that manages computer hardware and software resources and provides common services for computer programs. All computer programs, excluding firmware, require an operating system to function. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources.<ref>[https://en.wikipedia.org/wiki/Operating_system Operating System Definition]</ref>
 [[File:Operating system.png|300px|Operating System]]<br />
-source: [https://sites.google.com/site/operatingsystems10/home/server Google Sites - Operating System]
+source: Google
@@ Line 15: / Line 15: @@
 *Providing a user interface
 *Managing the computer's memory
-*Managing the hardware<ref>What is an Operating System? [http://www.teach-ict.com/as_a2_ict_new/ocr/A2_G063/332_designing_systems/operating_systems/miniweb/index.htm Teach-ICT]</ref>
+*Managing the hardware<ref>[http://www.teach-ict.com/as_a2_ict_new/ocr/A2_G063/332_designing_systems/operating_systems/miniweb/index.htm What is an Operating System?]</ref>
-'''Classification of Operating systems'''<br />
+== Classification of Operating systems ==
 *Multi-user: Allows two or more users to run programs at the same time. Some operating systems permit hundreds or even thousands of concurrent users.
 *Multiprocessing : Supports running a program on more than one CPU.
@@ Line 26: / Line 26: @@
-===See Also===
+== See Also ==
-*[[Desktop_Operating_System|Desktop Operating System]]
+*[[Desktop Operating System]]
-*[[Mobile_Operating_System|Mobile Operating System]]
+*[[Mobile Operating System]]
-*[[Server_Operating_System|Server Operating System]]
+*[[Server Operating System]]
 *[[Disk Operating System (DOS)]]
-===References===
+== References ==
 <references />
-===Further Reading===
+== Further Reading ==
-*Computer Basics: Understanding Operating Systems [http://www.gcflearnfree.org/computerbasics/understanding-operating-systems/1/ gcflearnfree.org]
+*[http://www.gcflearnfree.org/computerbasics/understanding-operating-systems/1/ Computer Basics: Understanding Operating Systems]
-*Operating System Definition & Examples [https://www.lifewire.com/operating-systems-2625912 Livewire]
+*[https://www.lifewire.com/operating-systems-2625912 Operating System Definition & Examples]
-*Operating System - Overview [https://www.tutorialspoint.com/operating_system/os_overview.htm Tutorialspoint]
+*[https://www.tutorialspoint.com/operating_system/os_overview.htm Operating System - Overview]
-*How Operating Systems Work [http://computer.howstuffworks.com/operating-system.htm How Stuff Works]
+*[http://computer.howstuffworks.com/operating-system.htm How Operating Systems Work]
-*What is Operating System [http://whatis.techtarget.com/definition/operating-system-OS Techtarget]
+*[http://whatis.techtarget.com/definition/operating-system-OS What is Operating System]

← Older revision		Revision as of 22:27, 6 January 2023
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	*[[Mobile_Operating_System\|Mobile Operating System]]		*[[Mobile_Operating_System\|Mobile Operating System]]
	*[[Server_Operating_System\|Server Operating System]]		*[[Server_Operating_System\|Server Operating System]]
		+	*[[Disk Operating System (DOS)]]

← Older revision		Revision as of 17:22, 6 February 2021
Line 1:		Line 1:
−	An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. All computer programs, excluding firmware, require an operating system to function. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources.<ref>Operating System Definition [https://en.wikipedia.org/wiki/Operating_system Wikipedia]</ref>	+	An operating [[system]] (OS) is system [[software]] that manages [[computer]] [[hardware]] and software resources and provides common services for computer programs. All computer programs, excluding firmware, require an operating system to function. Time-sharing operating systems schedule tasks for efficient use of the system and may also include [[accounting]] software for cost allocation of processor time, mass storage, printing, and other resources.<ref>Operating System Definition [https://en.wikipedia.org/wiki/Operating_system Wikipedia]</ref>