What is Windows Operating System and Its History?

Windows Operating System

Windows Operating System, also known with its different popular names as well, such as Windows, Windows OS, OS, Computer OS.

We would define the Windows operating system in simple words:

A Windows Operating system is a software program which acts as a mediator between the user and computer hardware”.

windows operating system

Every computer must have at least one operating system to run computer system and other programs.

There are a good number of lists of an operating systems that can be installed and used to different purpose and user requirements and Windows OS in one of them.

List of Popular Operating System

In computer technology, the most common operating systems are:

  • Windows
  • MacOS
  • Linux
  • Unix
  • Ubuntu

History of Windows Operating System

The following article is specially written for Windows OS. Will try to share maximum information on it.

The Windows operating system is designed, developed and marketed by Microsoft and launched its independent version of Microsoft Windows (version 1.0) on November 20, 1985.

Microsoft’s oldest operating systems is MS-DOS (Microsoft Disk Operating System). MS-DOS is a text-based operating system instead of friendly graphical user interfaces (GUI’s). The users need to type commands in it.

Furthermore, later there are other versions launched by Microsoft, but when they released Windows 95 (Graphical interface) code-named Chicago for users, Microsoft has occupied a big share in the market around the world.

It was designed to have support only for 32-bit programs.

windows 95 operating system

Here is list of most common Windows OS in sequence:

Windows Code Name Release Date
Windows NT 3.1 Razzle 07-27-1993
Windows 95 Chicago 08-24-1995
Windows 98 Memphis 06-25-1998
Windows 2000 Windows NT 5.0 02-17-2000
Windows Me Millennium 09-14-2000
Windows XP Whistler 25-10-2001
Windows Vista Longhorn 30-01-2007
Windows 7 Windows 7 10-22-2009
Windows 8 Windows 8 10-26-2012
Windows 8.1 Blue 10-17-2013
Windows 10, Ver. 1507 Threshold 1 07-29-2015
Windows 11 Sun Valley 10-05-2021

Windows Operating systems are launched for 32-bit and 64-bit types.

[Read: Difference between 32-bit and 64-bit System Type]

Here are the important links to download desired Windows OS:

[Read: How to Download and install Windows XP?]

[Read: Download Windows 7 ISO Image]

[Follow: Download Windows 10 Pro Disk Image (ISO)]

Common Functions of an Operating System

There are few key functions which an operating system performs while accessed by a user as below:

  1. Process management
  2. Memory management
  3. Security
  4. Command interpretation
  5. File management
  6. Communication
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