Selected MCQ

Current Question
Which of the following is a single-user operating system?
  • A. Linux
  • B. Windows 7
  • C. MS-DOS
  • D. Windows NT
Correct Answer: C
Explanation:
MS-DOS is a single-user operating system.
Related Question 1
Which of the following is not an operating system?
  • A. DOS
  • B. Linux
  • C. Windows
  • D. Oracle
Correct Answer: D
Explanation:
Oracle is a database management system, not an OS.
Related Question 2
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 3
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 4
Which of the following Excel features allows users to evaluate values and return a result?
  • A. Formulas
  • B. Formatting
  • C. Filters
  • D. Insertions
Correct Answer: A
Explanation:
Formulas and functions evaluate data and return results.
Related Question 5
Which of the following is not a system tool?
  • A. Backup
  • B. Disk defragment
  • C. Virus scanning
  • D. All of these
Correct Answer: D
Explanation:
All listed items are standard tools for system maintenance.