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Which of the following is NOT an open-source operating system?
1. Windows
2. Ubuntu
3. Drupal
4. Linux

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Correct Answer - Option 1 : Windows

Windows is NOT correct.

 

  • Among the options, only Windows is NOT an open-source operating system.
  • Windows is a closed source operating system marketed by Microsoft.
  • Microsoft first introduced the Windows operating system on 20 November 1985.
  • Closed Operating Systems are built with numerous codes and complex programming and that is called source code. 
  • An Open-source Operating System is the Operating System in which source code is visible publically and editable.
  • The operating system is a collection of programs that controls the overall operations of the computer.
  • Operating system is a System software in computers.
  • It works as an interface between user and computer hardware components.
  • Examples of operating systems are:
    • Linux.
    • Unix.
    • DOS.
    • Windows.
    • Ubuntu.
    • Embedded operating system.
    • OpenBSD.
    • Mac OS.

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