Which of the following is NOT an operating system used by today's computers and mobile devices?
A)Mac OS
B)Windows
C)DOS
D)Android

Question

Quizplus · Accepted Answer

DOS (Disk Operating System) was primarily used in computers from the 1980s and early 1990s, and has since been replaced by newer operating systems. Mac OS, Windows, and Android are all still widely used in computers and mobile devices today.

Which of the Following Is NOT an Operating System Used