What is the decimal equivalent of binary 111? MCQ with Answer and Explanation

What is the decimal equivalent of binary 111?
A. 9
B. 6
C. 7
D. 8
Answer: Option C
Solution (By JKExamLibrary)
111 in binary = 4+2+1 = 7.

This question belongs to: Computer Computer Fundamentals

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Practice More Computer Fundamentals Questions

Question #1 Report Error
Which of the following is an example of system software?
A. Microsoft Word
B. Google Chrome
C. Windows 10
D. Adobe Photoshop

Correct Answer: Option C


Explanation:
Operating systems like Windows are system software, while applications are user programs.

This question belongs to: Computer Computer Fundamentals
Question #2 Report Error
What is the function of the Control Unit (CU) in a CPU?
A. Controls and coordinates operations
B. Handles network communication
C. Stores data permanently
D. Performs arithmetic operations

Correct Answer: Option A


Explanation:
The Control Unit directs the operation of the processor by interpreting instructions and generating control signals.

This question belongs to: Computer Computer Fundamentals
Question #3 Report Error
Which mechanical computing device, designed by Charles Babbage in the 1830s, featured an 'Analytical Engine' concept containing an ' Mill' and a 'Store'?
A. Pascaline
B. Difference Engine
C. Analytical Engine
D. Tabulating Machine

Correct Answer: Option C


Explanation:
Babbage's Analytical Engine introduced structural concepts equivalent to the modern CPU ('Mill') and memory ('Store').

This question belongs to: Computer Computer Fundamentals