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.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Microprocessors. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Microprocessors knowledge to the test? Let's get started with our carefully curated MCQs!

Microprocessors MCQs | Page 38 of 59

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Q371.
The word size accessible at a time from the memory subsystem depends on

a.

width of data bus

b.

width of address bus

c.

width of control bus

d.

both (b) and (c)

Discuss
Answer: (a).width of data bus
Q372.
In windows the middle button of mouse is not used.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q373.
Microprocessor 8088 has

a.

16 bit registers and 16 bit data bus

b.

8 bit registers and 8 bit data bus

c.

8 bit registers and 16 bit data bus

d.

16 bit registers and 8 bit data bus

Discuss
Answer: (d).16 bit registers and 8 bit data bus
Q374.
Assertion (A): In 8085, P flag is for parity checking.

Reason (R): If the result of ALU has even parity, P flag is set and if the result has odd parity, P flag is reset.

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is correct R is wrong

d.

A is wrong R is correct

Discuss
Answer: (a).Both A and R are correct and R is correct explanation of A
Q375.
Which of the following is not a special purpose peripheral?

a.

Programmable DMA controller

b.

Programmable Floppy disc controller

c.

Programmable Hard disc controller

d.

Programmable CRT controller

Discuss
Answer: (a).Programmable DMA controller
Q376.
Which of the following is a valid variable in FORTRAN 77?

a.

3 A

b.

ALPHA -3

c.

ALPHA 3

d.

BALPHAC

Discuss
Answer: (c).ALPHA 3
Q377.
In Pascal an array declaration provides information to the Pascal processor to enable it to

a.

identify the variable as an array name

b.

reserve memory locations to store all the components of array

c.

check the values computed for subscripts expressions during program execution with the specified lower and upper limits of subscripts

d.

all of the above

Discuss
Answer: (d).all of the above
Q378.
In which of the following instructions of 8085 are the contents of accumulator complemented?

a.

STC

b.

CMC

c.

CMA

d.

RAL

Discuss
Answer: (c).CMA
Q379.
Assertion (A): Microprocessors 8086 and 8088 are very similar in organisation and have identical instruction sets.

Reason (R): If clock speed is same the execution time of 8088 and 8086 are exactly equal.

a.

Both A and R are correct and R is correct explanation of A

b.

Both A and R are correct but R is not correct explanation of A

c.

A is correct R is wrong

d.

A is wrong R is correct

Discuss
Answer: (c).A is correct R is wrong
Q380.
In which of the following logical group instructions of 8085 is the addressing mode 'immediate'?

a.

ANA r

b.

ANA M

c.

ANI data

d.

XRA r

Discuss
Answer: (c).ANI data
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