Selected MCQ

Current Question
The operating system is the most common type of Software
  • A. Communication
  • B. Application
  • C. System
  • D. None of these
Correct Answer: C
Explanation:
The operating system is the most important type of system software.
Related Question 1
What type of operating system MS-DOS is ____.
  • A. Command Line Interface
  • B. Graphical User Interface
  • C. Multitasking
  • D. Menu Driven Interface
Correct Answer: A
Explanation:
MS-DOS is a command-line interface operating system.
Related Question 2
In which type of operating system are time intervals for processing and responding to inputs very small?
  • A. Distributed operating system
  • B. Network operating system
  • C. Real-time operating system
  • D. Time-sharing operating system
Correct Answer: C
Explanation:
Real-time OS guarantees very small response times.
Related Question 3
When was the Microsoft Windows operating system introduced?
  • A. 1975
  • B. 1985
  • C. 1990
  • D. 2000
Correct Answer: B
Explanation:
Microsoft Windows 1.0 was introduced in 1985.
Related Question 4
In which generation of computer operating systems was it used for the first time?
  • A. 1st
  • B. 2nd
  • C. 3rd
  • D. 4th
Correct Answer: C
Explanation:
Operating systems became common in the third generation (1960s) with the advent of integrated circuits.
Related Question 5
A type of malware often disguised as legitimate software is ____.
  • A. Trojan Horse
  • B. PDF
  • C. Chrome
  • D. Safari
Correct Answer: A
Explanation:
A Trojan Horse appears harmless but performs malicious actions.