Operating System

Filed under by Nahal Ahmed on 7:30 PM

Operating system is a core set of programs that control and supervise the hardware of a computer and provides services of a computer. Operating system tells the computer how to interact with the user and how to use devices such as Disks, Keyboard , Mouse and Printer.

The purpose of Operating system is to remove the task for managing hardware for the more efficient use of the computer resources from user to computer and to provide an interface between hardware a user or an appliction program.

The Operating system commonly used in UNIX , OS/2 , MS-DOS , Macintosh and Windows



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.

  1. System 7.x
  2. Windows 98
  3. 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. Below are some examples of multi-user operating systems.

  1. Linux
  2. Unix
  3. Windows 2000

  • Multiprocessing

An operating system capable of supporting and utilizing more than one computer processor. Below are some examples of multiprocessing operating systems.

  1. Linux
  2. Unix
  3. 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.

  1. Unix
  2. Windows 2000

  • Multi-threading

Operating systems that allow different parts of a software program to run concurrently. Operating systems that would fall into this category are:

  1. Linux
  2. Unix
  3. Windows 2000

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