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Which one is not operating system?

A. P11

B. OS/2

C. Windows

D. Unix

Answer: Option A

Solution(By Examveda Team)

An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Early computers were built to perform a series of single tasks, like a calculator. Basic operating system features were developed in the 1950s, such as resident monitor functions that could automatically run different programs in succession to speed up processing.

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Comments ( 1 )

  1. ANKIT ROHILLA
    ANKIT ROHILLA :
    2 years ago

    P11 is a file format which stands for PAR recovery volume.

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