1000+ Computer Quiz Online Mock Test 2023 - 2024 - 2

Question: 6

A subtractor is normally not used in a modern digital computer because

(A) the design of a subtractor is very complex

(B) subtractors are very expensive

(C) most of the programs do not require subtraction

(D) the adder is geared for doing subtraction only

Ans: D

the adder is geared for doing subtraction only

Question: 7

Which of the following is a sequential access medium?

(A) cd-rom

(B) magnetic tape

(C) hard disk

(D) floppy disk

Ans: B

magnetic tape/p>

Question: 8

Which type of user interface almost always uses a mouse?

(A) graphical user interface

(B) pop-up menu

(C) prompt

(D) command

Ans: A

graphical user interface

Question: 9

Which DOS command is used to create a new sub directory?

(A) TREE

(B) RD

(C) CD

(D) MD

Ans: D

MD

Question: 10

Which key do you press to get help from within the DOS shell?

(A) F1

(B) F10

(C) enter

(D) alternate

Ans: A

F1

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