Computer Science MCQS

Computer Science MCQ with detailed explanations for students & freshers preparing for entrance exams, various tests, interviews, competitive exams like GATE exam, interview, competitive examination and entrance exam.

Which key is used for duplicate the selected text so that it can be used in another place?

A. (A) Ctrl+O
B. (B) Ctrl+D
C. (C) Ctrl+I
D. (D) Ctrl+I
Correct answer is: D. (D) Ctrl+I
In most applications, Ctrl+D is used to duplicate the selected text. However, in Excel, Ctrl+D duplicates the content of the cell above.

In the context of technology, what does “URL” stand for?

A. (A) Uniform Resource Locator
B. (B) Universal Resource Locator
C. (C) Unique Resource Locator
D. (D) Uniform Resource Link
Correct answer is: A. (A) Uniform Resource Locator
URL is an address used to access resources on the internet.

ABC computer is used for:

A. (A) Specific purpose computer
B. (B) General purpose computer
C. (C) Both A & B
D. (D) None of these
Correct answer is: B. (B) General purpose computer
The Atanasoff-Berry Computer (ABC) is considered the first general-purpose electronic computer.

The main component of a computer system that performs calculations and makes decisions is:

A. (A) CPU
B. (B) RAM
C. (C) Monitor
D. (D) Hard Drive
Correct answer is: A. (A) CPU
The CPU (Central Processing Unit) performs all calculations and makes decisions based on the data.

Which tool in MS Office is used to copy and paste character and paragraph formats to existing text?

A. (A) Format Painter
B. (B) Paste Special
C. (C) Text Box
D. (D) None of these
Correct answer is: A. (A) Format Painter
Format Painter in MS Office is used to copy and paste formatting from one text or paragraph to another.

The founder of the Mongol Empire was:

A. (A) Genghis Khan
B. (B) Kublai Khan
C. (C) Timur
D. (D) Attila the Hun
Correct answer is: A. (A) Genghis Khan
Genghis Khan founded the Mongol Empire in the early 13th century.

Which of the following print commands should be selected to view the whole document?

A. (A) Print Design
B. (B) Print Design
C. (C) Print All
D. (D) Print Preview
Correct answer is: D. (D) Print Preview
"Print Preview" shows how the document will appear before printing.

The largest producer of electricity in the Islamic world is:

A. (A) Kazakhstan
B. (B) Uzbekistan
C. (C) Saudi Arabia
D. (D) Tajikistan
Correct answer is: C. (C) Saudi Arabia
Saudi Arabia is the largest producer of electricity in the Islamic world.

What do you mean by vertical separation between columns?

A. (A) Index
B. (B) Gutter
C. (C) Margin
D. (D) None of these
Correct answer is: B. (B) Gutter
The "gutter" is the space between columns in printed or digital content.

Which of the following is an absolute cell reference?

A. IA1
B. $A$1
C. A1
D. A1
Correct answer is: B. $A$1
Absolute cell reference uses the dollar sign ($) to lock the reference.
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