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Operating System ABCs
Operating System types
Operating System overviews
Troubleshooting
Operating System Q&A
Operating System definitions
Apple news
Linux / Unix news
Microsoft news
Operating system ABCs
An operating system, or OS, is a software program that enables the computer hardware to communicate and operate with the computer software. Without a computer operating system, a computer would be useless.
Operating system types
As computers have progressed and developed so have the operating systems. Below is a basic list of the different operating systems and a few examples of operating systems that fall into each of the categories. Many computer operating systems will fall into more than one of the below categories.
GUI - Short for Graphical User Interface, a GUI Operating System contains graphics and icons and is commonly navigated by using a computer mouse. See the GUI definition for a complete definition. Below are some examples of GUI Operating Systems.
System 7.x
Windows 98
Windows CE
Multi-user - A multi-user operating system allows for multiple users to use the same computer at the same time and different times. See the multi-user definition for a complete definition for a complete definition. Below are some examples of multi-user operating systems.
Linux
Unix
Windows 2000
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
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
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
Troubleshooting
Common questions and answers to operating systems in general can be found on the below operating system question and answers. All other questions relating to an operating system in particular can be found through the operating system page.
Linux / Variants
MacOSMS-DOS
IBM OS/2 Warp
Unix / Variants
Windows CE
Windows 3.x
Windows 95
Windows 98
Windows 98 SE
Windows ME
Windows NT
Windows 2000
Windows XP
Windows Vista
Windows 7
Operating system listing
Below is a listing of many of the different operating systems available today, the dates they were released, the platforms they have been developed for and who developed them.
Operating systemDate first releasedPlatformDeveloperAIX / AIXLUnix / Linux history can be found here.VariousIBMAmigaOSCurrently no AmigaOS operating system history.AmigaCommodoreBSDUnix / Linux history can be found here.VariousBSDCaldera LinuxUnix / Linux history can be found here.VariousSCOCorel LinuxUnix / Linux history can be found here.VariousCorelDebian LinuxUnix / Linux history can be found here.VariousGNUDUnixUnix / Linux history can be found here.VariousDigitalDYNIX/ptxUnix / Linux history can be found here.VariousIBMHP-UXUnix / Linux history can be found here.VariousHewlett PackardIRIXUnix / Linux history can be found here.VariousSGIKondara LinuxUnix / Linux history can be found here.VariousKondaraLinuxUnix / Linux history can be found here.VariousLinus TorvaldsMAC OS 8Apple operating system history can be foundhere.Apple MacintoshAppleMAC OS 9Apple operating system history can be foundhere.Apple MacintoshAppleMAC OS 10Apple operating system history can be foundhere.Apple MacintoshAppleMAC OS XApple operating system history can be foundhere.Apple MacintoshAppleMandrake LinuxUnix / Linux history can be found here.VariousMandrakeMINIXUnix / Linux history can be found here.VariousMINIXMS-DOS 1.xMS-DOS history can be found here.
IBM / PCMicrosoftMS-DOS 2.xMS-DOS history can be found here.IBM / PCMicrosoftMS-DOS 3.xMS-DOS history can be found here.IBM / PCMicrosoftMS-DOS 4.xMS-DOS history can be found here.IBM / PCMicrosoftMS-DOS 5.xMS-DOS history can be found here.IBM / PCMicrosoftMS-DOS 6.xMS-DOS history can be found here.IBM / PCMicrosoftNEXTSTEPApple operating system history can be foundhere.VariousAppleOSF/1Unix / Linux history can be found here.VariousOSFQNXUnix / Linux history can be found here.VariousQNXRed Hat LinuxUnix / Linux history can be found here.VariousRed HatSCOUnix / Linux history can be found here.VariousSCOSlackware LinuxUnix / Linux history can be found here.VariousSlackwareSun SolarisUnix / Linux history can be found here.VariousSunSuSE LinuxUnix / Linux history can be found here.VariousSuSESystem 1Apple operating system history can be foundhere.Apple MacintoshAppleSystem 2Apple operating system history can be foundhere.Apple MacintoshAppleSystem 3Apple operating system history can be foundhere.Apple MacintoshAppleSystem 4Apple operating system history can be foundhere.Apple MacintoshAppleSystem 6Apple operating system history can be foundhere.Apple MacintoshAppleSystem 7Apple operating system history can be foundhere.Apple MacintoshAppleSystem VUnix / Linux history can be found here.VariousSystem VTru64 UnixUnix / Linux history can be found here.VariousDigitalTurbolinuxUnix / Linux history can be found here.VariousTurbolinuxUltrixUnix / Linux history can be found here.VariousUltrixUnisysUnix / Linux history can be found here.VariousUnisysUnixUnix / Linux history can be found here.VariousBell labsUnixWareUnix / Linux history can be found here.VariousUnixWareVectorLinuxUnix / Linux history can be found here.VariousVectorLinuxWindows 2000Windows history can be found here.IBM / PCMicrosoftWindows 2003Windows history can be found here.IBM / PCMicrosoftWindows 3.XWindows history can be found here.IBM / PCMicrosoftWindows 7Windows history can be found here.IBM / PCMicrosoftWindows 95Windows history can be found here.IBM / PCMicrosoftWindows 98Windows history can be found here.IBM / PCMicrosoftWindows CEWindows history can be found here.PDAMicrosoftWindows MEWindows history can be found here.IBM / PCMicrosoftWindows NTWindows history can be found here.IBM / PCMicrosoftWindows VistaWindows history can be found here.IBM / PCMicrosoftWindows XPWindows history can be found here.IBM / PCMicrosoftXenixUnix / Linux history can be found here.VariousMicrosoftCommon operating system questions and answers
ReferenceIssue / QuestionCH000575Linux vs. WindowsCH000619Command line vs. GUI.CH000643How do I determine what operating system I'm using?Q&ASee the Q&A section for a complete listing of more specific OS questions.ForumIf your question is not listed here try our computer help forum.
Operating System ABCs
Operating System types
Operating System overviews
Troubleshooting
Operating System Q&A
Operating System definitions
Apple news
Linux / Unix news
Microsoft news
Operating system ABCs
An operating system, or OS, is a software program that enables the computer hardware to communicate and operate with the computer software. Without a computer operating system, a computer would be useless.
Operating system types
As computers have progressed and developed so have the operating systems. Below is a basic list of the different operating systems and a few examples of operating systems that fall into each of the categories. Many computer operating systems will fall into more than one of the below categories.
GUI - Short for Graphical User Interface, a GUI Operating System contains graphics and icons and is commonly navigated by using a computer mouse. See the GUI definition for a complete definition. Below are some examples of GUI Operating Systems.
System 7.x
Windows 98
Windows CE
Multi-user - A multi-user operating system allows for multiple users to use the same computer at the same time and different times. See the multi-user definition for a complete definition for a complete definition. Below are some examples of multi-user operating systems.
Linux
Unix
Windows 2000
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
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
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
Troubleshooting
Common questions and answers to operating systems in general can be found on the below operating system question and answers. All other questions relating to an operating system in particular can be found through the operating system page.
Linux / Variants
MacOSMS-DOS
IBM OS/2 Warp
Unix / Variants
Windows CE
Windows 3.x
Windows 95
Windows 98
Windows 98 SE
Windows ME
Windows NT
Windows 2000
Windows XP
Windows Vista
Windows 7
Operating system listing
Below is a listing of many of the different operating systems available today, the dates they were released, the platforms they have been developed for and who developed them.
Operating systemDate first releasedPlatformDeveloperAIX / AIXLUnix / Linux history can be found here.VariousIBMAmigaOSCurrently no AmigaOS operating system history.AmigaCommodoreBSDUnix / Linux history can be found here.VariousBSDCaldera LinuxUnix / Linux history can be found here.VariousSCOCorel LinuxUnix / Linux history can be found here.VariousCorelDebian LinuxUnix / Linux history can be found here.VariousGNUDUnixUnix / Linux history can be found here.VariousDigitalDYNIX/ptxUnix / Linux history can be found here.VariousIBMHP-UXUnix / Linux history can be found here.VariousHewlett PackardIRIXUnix / Linux history can be found here.VariousSGIKondara LinuxUnix / Linux history can be found here.VariousKondaraLinuxUnix / Linux history can be found here.VariousLinus TorvaldsMAC OS 8Apple operating system history can be foundhere.Apple MacintoshAppleMAC OS 9Apple operating system history can be foundhere.Apple MacintoshAppleMAC OS 10Apple operating system history can be foundhere.Apple MacintoshAppleMAC OS XApple operating system history can be foundhere.Apple MacintoshAppleMandrake LinuxUnix / Linux history can be found here.VariousMandrakeMINIXUnix / Linux history can be found here.VariousMINIXMS-DOS 1.xMS-DOS history can be found here.
IBM / PCMicrosoftMS-DOS 2.xMS-DOS history can be found here.IBM / PCMicrosoftMS-DOS 3.xMS-DOS history can be found here.IBM / PCMicrosoftMS-DOS 4.xMS-DOS history can be found here.IBM / PCMicrosoftMS-DOS 5.xMS-DOS history can be found here.IBM / PCMicrosoftMS-DOS 6.xMS-DOS history can be found here.IBM / PCMicrosoftNEXTSTEPApple operating system history can be foundhere.VariousAppleOSF/1Unix / Linux history can be found here.VariousOSFQNXUnix / Linux history can be found here.VariousQNXRed Hat LinuxUnix / Linux history can be found here.VariousRed HatSCOUnix / Linux history can be found here.VariousSCOSlackware LinuxUnix / Linux history can be found here.VariousSlackwareSun SolarisUnix / Linux history can be found here.VariousSunSuSE LinuxUnix / Linux history can be found here.VariousSuSESystem 1Apple operating system history can be foundhere.Apple MacintoshAppleSystem 2Apple operating system history can be foundhere.Apple MacintoshAppleSystem 3Apple operating system history can be foundhere.Apple MacintoshAppleSystem 4Apple operating system history can be foundhere.Apple MacintoshAppleSystem 6Apple operating system history can be foundhere.Apple MacintoshAppleSystem 7Apple operating system history can be foundhere.Apple MacintoshAppleSystem VUnix / Linux history can be found here.VariousSystem VTru64 UnixUnix / Linux history can be found here.VariousDigitalTurbolinuxUnix / Linux history can be found here.VariousTurbolinuxUltrixUnix / Linux history can be found here.VariousUltrixUnisysUnix / Linux history can be found here.VariousUnisysUnixUnix / Linux history can be found here.VariousBell labsUnixWareUnix / Linux history can be found here.VariousUnixWareVectorLinuxUnix / Linux history can be found here.VariousVectorLinuxWindows 2000Windows history can be found here.IBM / PCMicrosoftWindows 2003Windows history can be found here.IBM / PCMicrosoftWindows 3.XWindows history can be found here.IBM / PCMicrosoftWindows 7Windows history can be found here.IBM / PCMicrosoftWindows 95Windows history can be found here.IBM / PCMicrosoftWindows 98Windows history can be found here.IBM / PCMicrosoftWindows CEWindows history can be found here.PDAMicrosoftWindows MEWindows history can be found here.IBM / PCMicrosoftWindows NTWindows history can be found here.IBM / PCMicrosoftWindows VistaWindows history can be found here.IBM / PCMicrosoftWindows XPWindows history can be found here.IBM / PCMicrosoftXenixUnix / Linux history can be found here.VariousMicrosoftCommon operating system questions and answers
ReferenceIssue / QuestionCH000575Linux vs. WindowsCH000619Command line vs. GUI.CH000643How do I determine what operating system I'm using?Q&ASee the Q&A section for a complete listing of more specific OS questions.ForumIf your question is not listed here try our computer help forum.
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