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MCQ

Q.

8086 has ___ address bus.

A

16-bit

B

18-bit

C

20-bit

D

24-bit

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MCQ

1.

The RD, WR, M/IO is the heart of control for a __________ mode

A

minimum

B

maximum

C

compatibility mode

D

control mode

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2.

Which of the following is not an 8086/8088 general-purpose register?

A

Code segment (CS)

B

Data segment (DS)

C

Stack segment (SS)

D

Address segment (AS)

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3.

During a read operation the CPU fetches ________

A

a program instruction

B

another address

C

data itself

D

all of the above

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4.

It is used to write the data into the memory or the output device depending on the status of M/IO signal.

A

IR

B

HLDA

C

HR

D

WR

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5.

In 8086 microprocessor the following has the highest priority among all type interrupts?

A

NMI

B

DIV 0

C

TYPE 255

D

OVER FLOW

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