Microprocessors MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Microprocessors, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Microprocessors MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Microprocessors mcq questions that explore various aspects of Microprocessors problems. Each MCQ is crafted to challenge your understanding of Microprocessors principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Microprocessors MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

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Microprocessors MCQs | Page 47 of 59

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Q461.
Consider the following statements about 8085

1. The instruction LDA uses direct addressing mode.
2. The instruction MVI uses direct addressing mode.
3. The instruction MVI uses immediate addressing mode.
4. The instruction LDA uses immediate addressing mode.

Which of the above are correct?
Discuss
Answer: (a).1 and 3 only
Discuss
Answer: (c).directs the assembler to reserve a sequence of consecutive 105 bytes in the memory
Q463.
Which of the following is not a valid logical expression in Pascal?
Discuss
Answer: (c).A = < B
Q464.
Which of the following instructions in 8085 does not belong to data transfer group?
Discuss
Answer: (d).SUB r
Q465.
For Disk partitioning th DOS command is
Discuss
Answer: (a).F DISK
Q466.
In 8085 the instruction MOV A, M is an example of
Discuss
Answer: (d).Register indirect addressing
Q467.
Assertion (A): Magnetic tape can be accessed only sequentially.

Reason (R): Magnetic tape consists of magnetised spots or tracks.
Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A
Q468.
Assertion (A): Most PCs use static RAM for main memory.

Reason (R): Static RAM is faster than dynamic RAM.
Discuss
Answer: (d).A is wrong R is correct
Q469.
Consider the following statements

1. A 33 MHz 486 has higher MIPS than 33 MHz 386.
2. A 33 MHz 486 has higher MFLOPS than 33 MHz 386

of these statements.
Discuss
Answer: (a).Both are true
Q470.
Assertion (A): Microprocessor 8085 has 16 address bus lines and 8 data bus lines.

Reason (R): Address bus in 8085 is unidirectional.
Discuss
Answer: (b).Both A and R are correct but R is not correct explanation of A