• GUI – GUI stands for Graphical User Interface, a GUI OS includes graphics and icons and is commonly navigated by using a computer mouse. Below are some examples of GUI OS.

System 7.x

Windows 98

Windows CE

• Multi-user - A multi-user OS permits for multiple users to use the similar machine at the same time and/or different times. Below are some examples of multi-user OS.

Linux

Unix

Windows 2000

Windows XP

Mac OS X

• Multiprocessing - An OS able of supporting and using over one computer processor. Below are some examples of multiprocessing Operating Systems.

Linux

Unix

Windows 2000

Windows XP

Mac OS X

• Multitasking - An OS that is able of allowing several software process to run at the related time. Below are some examples of multitasking Operating Systems.

Unix

Windows 2000

Windows XP

Mac OS X

• Multithreading - OS that permit unusual parts of software program to run at the same time. are some example of multithreading Operating Systems:

Linux

Unix

Windows 2000

Windows XP

Mac OS X