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Welcome to the 80286 80287 Microprocessor MCQs Page

Dive deep into the fascinating world of 80286 80287 Microprocessor with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of 80286 80287 Microprocessor, a crucial aspect of Microprocessor. In this section, you will encounter a diverse range of MCQs that cover various aspects of 80286 80287 Microprocessor, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Microprocessor.

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Check out the MCQs below to embark on an enriching journey through 80286 80287 Microprocessor. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Microprocessor.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of 80286 80287 Microprocessor. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

80286 80287 Microprocessor MCQs | Page 18 of 19

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Q171.
The unit that provides and controls the interface, between the internal 80287 bus and 80286 bus via data buffer is

a.

bus control logic

b.

data interface and control unit

c.

floating point unit

d.

none of the mentioned

Discuss
Answer: (a).bus control logic
Q172.
The data interface and control unit consists of

a.

status and control words

b.

tag words and error pointers

c.

instruction decoders

d.

all of the mentioned

Discuss
Answer: (d).all of the mentioned
Q173.
The word that optimizes the NDP performance, by maintaining a record of empty and non-empty register locations is

a.

Status and control words

b.

TAG words

c.

Error pointers

d.

All of the mentioned

Discuss
Answer: (b).TAG words
Q174.
The part of the data interface and control unit, that points to the source of exception generated is

a.

Status and control words

b.

TAG words

c.

Error pointers

d.

None of the mentioned

Discuss
Answer: (c).Error pointers
Q175.
The data bus in a floating point unit is of

a.

16 bits

b.

32 bits

c.

64 bits

d.

84 bits

Discuss
Answer: (d).84 bits
Q176.
The arrangement of data that is to be shifted successively, whenever required for the execution, is done by

a.

error pointer

b.

data buffer

c.

barrel shifter

d.

none of the mentioned

Discuss
Answer: (c).barrel shifter
Q177.
The word that is used to select one of the processing options, among the provided ones is

a.

status word

b.

control word

c.

status and control words

d.

none of the mentioned

Discuss
Answer: (b).control word
Q178.
After reset of 80287, the control bit that is initialized to zero is

a.

masking bits

b.

precision control bits

c.

rounding control bits

d.

infinity control bits

Discuss
Answer: (d).infinity control bits
Q179.
The bits that are modified depending upon the result of the execution of arithmetic instructions are

a.

masking bits

b.

rounding control bits

c.

condition code bits

d.

error summary bits

Discuss
Answer: (c).condition code bits
Q180.
If the stack flag is set, and condition code bit C1=1, then the stack is

a.

full

b.

overflown

c.

underflown

d.

empty

Discuss
Answer: (b).overflown
Page 18 of 19

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