Arrange the following operating systems in correct chronological order of their development.

1.Linux

2.MS-DOS

3.MAC OS

4.Windows

A4, 2, 1, 3

B2, 3, 1, 4 ✓ Correct

C1, 2, 3, 4

D2, 1, 4, 3

Correct answer: (B) 2, 3, 1, 4

Explanation

MS-DOS was the earliest of these, released by Microsoft in 1981.

Mac OS followed with the Macintosh system software in 1984.

Linux appeared next as a free Unix-like kernel created by Linus Torvalds.

Windows is placed last in this development sequence as the graphical system for PCs.

The order Statement 2, Statement 3, Statement 1, Statement 4 reflects this arrangement.

MS-DOS was command line based while Mac OS pioneered the graphical user interface.

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