Which of the following is a classic example of a single-user, single-tasking operating system? MCQ with Answer and Explanation

Which of the following is a classic example of a single-user, single-tasking operating system?
A. Linux Ubuntu
B. MS-DOS
C. Android
D. Windows 95
Answer: Option B
Solution (By JKSSB Mock Tests)
MS-DOS (Microsoft Disk Operating System) is a historical command-line operating system that natively supported only one user and one running task at a time.

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Practice More Operating Systems Questions

Question #1
What is the primary objective of a 'Cold Boot' procedure?
A. Lowering the operational temperature of the CPU fan.
B. Starting up a computer system that was completely powered off, initializing hardware components anew.
C. Restarting the computer purely through terminal soft commands.
D. Running an offline antivirus scan.

Correct Answer: Option B


Explanation:
A cold boot occurs when the power switch is flipped from 'Off' to 'On', triggering a complete hardware check and OS load from scratch.

This question belongs to: Computer Operating Systems
Question #2
Which of the following is a Linux distribution?
A. Android
B. Ubuntu
C. Windows 10
D. macOS

Correct Answer: Option B


Explanation:
Ubuntu is a popular Linux distribution (distro) based on Debian.

This question belongs to: Computer Operating Systems
Question #3
What is the purpose of the Android 'UsbManager'?
A. To control USB charging
B. To detect USB devices
C. To manage USB device connections and communication
D. To manage USB storage

Correct Answer: Option C


Explanation:
UsbManager provides access to USB devices connected to the Android device, allowing communication via USB.

This question belongs to: Computer Operating Systems