Operating System MCQs
Practice free Operating System multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 540 questions — no login required.
Question 73hard
Which is the layer of a computer system between the hardware and the user program
Question 74hard
When you start up the computer the boot up storage at which the BIOS versions manufacturer and data are displayed on the monitor is called
Question 75hard
The operating system is the most common type of ...... Software
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Question 76easy
Which of the following is/are external commands?
Question 77medium
Which is not an external command?
Question 78hard
Which of the following is not essential to shut down your computer?
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Question 79hard
What is Dr. Watson?
Question 80medium
You can move a window to a different position on your screen by dragging it by its
Question 81hard
A bar that inform you the available options in your computer, opened applications, background running applications and can be used to switch between applications quickly is