Wednesday, February 11, 2009

Operating Systems

Operating system is a software program that enables the computer hardware to communicate and operate with the computer software. Computer without operating system is useless.

Operating system types
Many computer operating systems will fall into more than one categories.

GUI (Graphical User Interface): GUI Operating System contains graphics and icons and is commonly navigated by using a computer mouse.

Windows 98
Windows CE
Windows XP
Windows Vista

Multi-user - A multi-user operating system allows for multiple users to use the same computer at the same time and/or different times. Below are some examples of multi-user operating systems. Linux
Unix
Windows 2000 Windows 2003 Windows 2008

Multiprocessing - An operating system capable of supporting and utilizing more than one computer processor. Below are some examples of multiprocessing operating systems.
Linux
Unix
Windows 2000
Windows 2003
Windows 2008

Multitasking - An operating system that is capable of allowing multiple software processes to run at the same time. Below are some examples of multitasking operating systems.
Unix
Windows 2000
Windows 2003
Windows 2008

Multithreading - Operating systems that allow different parts of a software program to run concurrently. Operating systems that would fall into this category are:
Linux
Unix
Windows 2000
Windows 2003
Windows 2008

Some Operating systems
MacOS
MS-DOS
IBM OS/2 Wrap
Windows CE
Windows 3.x
Windows 95
Windows 98
Windows 98 SE
Windows ME
Windows NT
Windows 2000
Windows XP
Windows Vista
Windows 2003
Windows 2008

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