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Computer MCQ Questions with answers

Here Important Computer MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button or on option itself. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping whatsapp button.

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Learn Computer MCQs [Page 1 of Department 41]

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1) Even after a Reset operation which of the following interrupts remain enable?

(A) RST 7.5
(B) RST 6.5
(C) TRAP
(D) RST 5.5
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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2) In order to enable INTR interrupt, which of the following instructions is/are needed?

(A) EI only
(B) SIM only
(C) both EI and SIM
(D) none
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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Yashika • 3.75K Points
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3) What do the content of Instruction register specify?

(A) Operand of the instruction being executed
(B) Op-code of the instruction being executed
(C) Op-code of the instruction to be executed next
(D) Operand of the instruction to be executed next
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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Yashika • 3.75K Points
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4) How many lines are there in address bus and data bus of 8085 microprocessor respectively?

(A) 12, 8
(B) 8, 8
(C) 16, 8
(D) 8, 16
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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Yashika • 3.75K Points
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7) What is the size of the accumulator (register A) 8085 microprocessor?

(A) 6 bits
(B) 8 bits
(C) 12 bits
(D) 16 bits
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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Yashika • 3.75K Points
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8) What is the length of instruction register 8085 microprocessor?

(A) 8 bits
(B) 16 bits
(C) 32 bits
(D) 64 bits
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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9) What is the length of program counter (PC) 8085 microprocessor?

(A) 8 bits
(B) 12 bits
(C) 16 bits
(D) 32 bits
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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Yashika • 3.75K Points
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10) What is the length of SP (satck pointer) of 8085 microprocessor?

(A) 8 bits
(B) 16 bits
(C) 12 bits
(D) 32 bits
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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