Question # 1

The sub program finish the return instruction recovers the return address from the.

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Queue

Stack

Program counter

Pointer

LA stand for

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Load accumulator

Least accumulator

Last accumulator

None

a 16 bit address bus can generate ________ address bus.

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16

32

36

64

The standard I/O is also called.

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isolated I/O

Parallel I/O

Both a and b

None

Who works as cache on the variable.

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Memory

Pointer

Register

Segment

The external system bus architecture is created using from ______ architecture.

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Pascal

Dennis Ritchie

Charles Babbage

Von Neumann

___________ a sub system that transfer data between computer components inside a computer or between computer.

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Chip

Register

Bus

processor

The register section is related to ____________ of the computer.

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Processing

ALU

Main memory

None

The processer of knowing the status of device and transferring the data with matching speeds is called.

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Handshaking

Peripheral

Ports

None

In microprocessor one of the operands holds a special register called.

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Calculator

Dedicated

Accumulator

None

AEN stand for

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Address enable

Address equivalent

Acknowledgment enable

Acknowledgment equivalent

HMOS stand for

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High performance metal oxide semiconductor

High processor metal oxide semiconductor

Both a and b

None

An externa feedback resistor acts to control the.

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Gain

Gate

Loss

Profit

The external device is connected to a pin called the_____ pin on the processor chip

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Interrupt

Tranasfer

Both a and b

None

WB stand for

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Write buffers

Written buffers

Wrote buffers

None

Which formula is used to calculate the number of write stall cycles.

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Reads * read miss rate* read miss penalty

write * write miss + Write buffer stalls

Memory access* cache miss rate * cache miss penalty

None

How many types of microprocessor comprieses.

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3

6

4

9

Which mode is used to double handshakes in 8255

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Mode 0

Mode 1

Mode 2

Mode 3

The problems of bus confit and spares address distribution are eliminated by the use of ___ address technique.

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Fully decoding

Half decoding

Both a and b

None

Which generate an interrupt to the microprocessor after a certain interval of time.

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8251

8254

8255

8259

EB stand for

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Effect buffers

Effecting buffers

Effect ion buffers

Eviction buffers

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