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.

To what temporary area can you store text or other data and later paste them to another location?

A. (A) Clipboard
B. (B) ROM
C. (C) Hard Disk
D. (D) None of these
Correct answer is: A. (A) Clipboard
The clipboard temporarily stores data that can be copied or cut and later pasted.

Which country is known for developing the first computer mouse?

A. (A) USA
B. (B) Japan
C. (C) Germany
D. (D) France
Correct answer is: A. (A) USA
The first computer mouse was developed by Douglas Engelbart in the USA in 1964.

In Excel, Columns are labeled as:

A. (A) A, B, C
B. (B) A1, A2, A3
C. (C) $A$1, $B$2
D. (D) 1, 2, 3
Correct answer is: A. (A) A, B, C
In Excel, columns are labeled alphabetically, e.g., A, B, C.

In which year did India gain independence?

A. (A) 1947
B. (B) 1950
C. (C) 1960
D. (D) 1952
Correct answer is: A. (A) 1947
India gained independence from British rule on August 15, 1947.

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.
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