Microprocessors

Microprocessors

University

15 Qs

quiz-placeholder

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Microprocessors

Microprocessors

Assessment

Quiz

Other

University

Hard

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

MOS stands for ____________________

Material Operating Semiconductor

Metal Oxide Semiconductor

Metal Operating Segment

None of the mentioned

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In register address mode, the operand is stored in

8-bit general purpose register

16-bit general purpose register

si or di

all of the mentioned

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The bus is available when the DMA controller receives the signal

HRQ

HLDA

DACK

All of the mentioned

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The number of clock cycles required for an 8257 to complete a transfer is

2

4

8

NONE

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The register of 8257 that can only be written in is

DMA address register

Terminal count register

Mode set register

Status register

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All the functions of the ports of 8255 are achieved by programming the bits of an internal register called

data bus control

read logic control

control word register

none of the mentioned

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is not a Features of 8086?

It uses two stages of pipelining

It is available in 3 versions based on the frequency of operation

Fetch stage can prefetch up to 6 bytes of instructions

It has 512 vectored interrupts.

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