Operating system
hideAn operating system (commonly abbreviated to either OS or O/S) is an interface between hardware and user; an OS is responsible for the management and coordination of activities and the sharing of the resources of the computer. The operating system acts as a host for computing applications that are run on the machine. As a host, one of the purposes of an operating system is to handle the details of the operation of the hardware. This relieves application programs from having to manage these details and makes it easier to write applications. Almost all computers (including handheld computers, desktop computers, supercomputers, video game consoles) as well as some robots, domestic appliances (dishwashers, washing machines), and portable media players use an operating system of some type. Some of the oldest models may however use an embedded operating system, that may be contained on a compact disk or other data storage device.
Operating systems offer a number of services to application programs and users. Applications access these services through application programming interfaces (APIs) or system calls. By invoking these interfaces, the application can request a service from the operating system, pass parameters, and receive the results of the operation. Users may also interact with the operating system with some kind of software user interface (UI) like typing commands by using command line interface (CLI) or using a graphical user interface (GUI, commonly pronounced “gooey”). For hand-held and desktop computers, the user interface is generally considered part of the operating system. On large multi-user systems like Unix and Unix-like systems, the user interface is generally implemented as an application program that runs outside the operating system. (Whether the user interface should be included as part of the operating system is a point of contention.)
Common contemporary operating system families include BSD, Darwin (Mac OS X), GNU/Linux, SunOS (Solaris/OpenSolaris), and Windows NT (XP/Vista/7). While servers generally run Unix or some Unix-like operating system, embedded system markets are split amongst several operating systems.
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This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with operating system
Windows 7 debut a hit: NPD
Nov 06, 2009 |
1.3 / 5 (12) |
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Microsoft's new-generation Windows 7 operating system hit the ground running, with US sales in its opening days blasting past those of its Vista predecessor, according to NPD Group.
Microsoft CEO: Windows 7 Japan sales 'fantastic'
Nov 05, 2009 |
1 / 5 (1) |
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(AP) -- Sales of Microsoft Corp.'s new Windows 7 operating system have been "fantastic" in Japan since its launch last month, CEO Steve Ballmer said Thursday.
Hooks hijacked? New research shows how to block stealthy malware attacks
Technology / Computer Sciences
Nov 03, 2009 |
4.9 / 5 (13) |
3
The spread of malicious software, also known as malware or computer viruses, is a growing problem that can lead to crashed computer systems, stolen personal information, and billions of dollars in lost productivity every ...
PC sales expected to benefit from Windows 7 release
Oct 29, 2009 |
not rated yet |
0
Last week's launch of Windows 7 by Microsoft Corp. is widely expected to ignite a boost in sales of PCs after the company's last operating system failed to ignite much excitement.
Amazon to release free Kindle software for PC
Oct 22, 2009 |
3.5 / 5 (2) |
1
(AP) -- Amazon.com Inc. is trying to get more people to buy the electronic books that are compatible with its Kindle gadget by offering free software for people to read them on a computer.
Microsoft launches Windows 7 (Update)
Oct 22, 2009 |
1.8 / 5 (13) |
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Microsoft's much-heralded Windows 7 went on sale around the world Thursday as the US software giant seeks to reboot after the disappointment of its previous generation operating system Vista.
Microsoft's naming math: Vista plus 1 is 7
Oct 21, 2009 |
2.4 / 5 (8) |
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(AP) -- Microsoft's new operating system launches Thursday, and you may be asking: How did we get to Windows 7? Did I miss 5 and 6?
How Microsoft plans to hook users on Windows 7
Oct 15, 2009 |
1.9 / 5 (19) |
3
While the Europeans haggle over the Windows 7 browser scheme, everyone else may want to look at other creative ways Microsoft's new operating system will advance its business.
Review: Windows 7 strong, but don't pay to upgrade
Oct 14, 2009 |
1.9 / 5 (19) |
7
(AP) -- Next week, Microsoft is releasing Windows 7, a slick, much improved operating system that should go a long way toward erasing the bad impression left by its previous effort, Vista.
Researchers save electricity with low-power processors and flash memory
Oct 14, 2009 |
3.3 / 5 (8) |
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Researchers at Carnegie Mellon University and Intel Labs Pittsburgh (ILP) have combined low-power, embedded processors typically used in netbooks with flash memory to create a server architecture that is fast, but far more ...
New Giorgio Armani Samsung smartphone
Electronics / Consumer & Gadgets
Oct 12, 2009 |
1 / 5 (2) |
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Giorgio Armani and Samsung Electronics have presented the new Giorgio Armani-Samsung smartphone.
Microsoft unveils line of Windows phones
Electronics / Consumer & Gadgets
Oct 06, 2009 |
1.3 / 5 (4) |
1
Microsoft chief Steve Ballmer on Tuesday unveiled his company's line of Windows smartphones in an offensive against Apple's iPhone and Google's Android system.
Computer scientists successfully boot one million Linux kernels as virtual machines
Technology / Computer Sciences
Sep 25, 2009 |
4.7 / 5 (22) |
8
(PhysOrg.com) -- Computer scientists at Sandia National Laboratories in Livermore, Calif., have for the first time successfully demonstrated the ability to run more than a million Linux kernels as virtual ...
Palm expected to see loss grow, sales decline
Sep 23, 2009 |
not rated yet |
0
Palm Inc. is expected to report a deeper net loss on a decline in revenue for its first fiscal quarter, but most investors are likely to pay closer attention to sales of the its new Pre smartphone as a potential ...
Free PC widgets save energy
Sep 23, 2009 |
5 / 5 (3) |
2
I shaved 0.86 pounds of emissions from my carbon footprint and saved 0.646 kilowatt hours yesterday, and if the little widget on my PC can be believed, more than 22,000 people in 128 countries did roughly the same.
