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An operating system, or "OS," is software that communicates
with the hardware
and allows other programs
to run. It is comprised of system software, or the
fundamental files your computer needs to boot up and function.
Every desktop computer, tablet, and smartphones
includes an operating system that provides basic
functionality for the device. Common desktop operating systems include Windows, Mac OS X, and Linux. While each OS is
different, they all provide a graphical user interface, or GUI, that includes a desktop and the ability to
manage files and folders. They also allow you to install and run programs
written for the operating system. While Windows and Linux can be installed on
standard PC hardware, Mac OS X can only run on Macintosh computers. Therefore,
the hardware you choose affects what operating system(s) you can run. | |
Utility programs, commonly referred to as
just "utilities," are software programs that add functionality to
your computer or help your computer perform better. These include antivirus,
backup, disk repair, file management, security, and networking programs.
Utilities can also be applications such as screen
savers, font and icon tools, and desktop enhancements. Some
utility programs help keep your computer free from unwanted software such as
viruses or spy ware, while others add
functionality that allows you to customize your desktop and user interface. In
general, programs that help make your computer better are considered utilities. |