Digital Circuit and Microprocessor MCQs
Practice free Digital Circuit and Microprocessor multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 363 questions — no login required.
Question 244easy
Which byte of an instruction is loaded into IR register?
Question 245easy
What is the direction of the data bus?
Question 246easy
What is the direction of address bus?
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Question 247easy
What is the direction of control bus?
Question 248easy
A contains 5 EH, B contains 27 H ; C contains 4 FH, H contains 00 H, L contains OFFH and memory locations 00 EEH and 00 FFH contain 2 DH and 4 EH respectively. The following program begins at memory location 0110 H:ADD C,DAA MOV B, M MOV M, A DAD B.(I) What A will contain after the program?
Question 249easy
What B will contain after the program?
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Question 250easy
What H will contain after the program?
Question 251easy
What L will contain after the program?
Question 252easy
What will be the content of memory location 00 FFH after the program?