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📝 Memory Unit of Simple as Possible (SAP) I Computer

📖 From An Introduction To Microprocessor 8085 • 2. Simple as Possible (SAP) - I • 7 questions available

Practice MCQs for Memory Unit of Simple as Possible (SAP) I Computer. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-30

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Q1. What is the primary function of the Control Unit in a computer system?

🔹 A. It performs arithmetic calculations.

🔹 B. It coordinates the activities of other units and directs data flow.

🔹 C. It stores data permanently.

🔹 D. It generates visual output on a screen.

💡 Difficulty: easy | ✅ Correct: A

Q2. How does the interaction between the Arithmetic Logic Unit (ALU) and the Control Unit enable the execution of an instruction?

🔹 A. The ALU stores the instruction while the Control Unit processes it.

🔹 B. The Control Unit decodes the instruction and signals the ALU to perform the required operation.

🔹 C. Both units independently execute the same instruction simultaneously.

🔹 D. The ALU controls the timing signals for the Control Unit.

💡 Difficulty: medium | ✅ Correct: A

Q3. Why does the Control Unit rely on clock pulses to sequence operations, and what would happen if the clock stopped temporarily?

🔹 A. Clock pulses provide power to the ALU; without them, the ALU would overheat.

🔹 B. Clock pulses synchronize the timing of control signals; a pause would cause instructions to stall or execute out of order.

🔹 C. Clock pulses store data in registers; stopping them would erase memory contents.

🔹 D. Clock pulses generate visual output; halting them would blank the screen.

💡 Difficulty: hard | ✅ Correct: A

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