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.
Windows automatically starts CD player when one inserts audio CD in CD-ROM drive.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q372.
In 8086 the word address is

a.

the address of the least significant byte

b.

the address of most significant byte

c.

either (a) or (b) depending on the word

d.

neither (a) nor (b)

Discuss
Answer: (a).the address of the least significant byte
Q373.
The instruction MOV r1, r2 in 8085

a.

causes contents of registers r2 to be moved to r, and uses register addressing

b.

causes contents of registers r1 to be moved to r2 and uses register addressing

c.

causes contents of registers r1 to be moved to r2 and uses register immediate addressing

d.

causes contents of registers r2 to be moved to r1 and uses register immediate addressing

Discuss
Answer: (a).causes contents of registers r2 to be moved to r, and uses register addressing
Q374.
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
Q375.
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
Q376.
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
Q377.
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
Q378.
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
Q379.
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
Q380.
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
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