Question # 1

How many speed of 8088 , 8085 , 8086 microprocessor.

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2.5 million instructions per second

1.5 Million instruction per second

3.5 Million instruction second

1.6 Million instruction per second

Which is called super highway

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Processor

Multiplexer

Backbone bus

None

The time taken for all stages of the assembly line to become active is called the

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Flow through time

Clock period

Through put

All of these

Which is the components of computer

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System bus

CPU

Memory unit

All these

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

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Calculator

Dedicated

Accumulator

None

An externa feedback resistor acts to control the.

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Gain

Gate

Loss

Profit

Second generation ____________________?

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1974-1976

1974-1978

1974-1972

None

A central processing unit fabricated on a single chip of semiconductor is called.

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RAM

ROM

Microprocessor

None

The network of wires or electronic path ways on mother board back side.

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PCB

BUS

Both a and b

None

The status register is also called the

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Condition code register

Flag register

a and b

None

In which register instruction is decoded prepared and ultimately executed.

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Instruction register

Current register

Both a and b

None

SBA stand for

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Segment bus address

Segment not address

Segment base address

Segment byte address

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

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8251

8254

8255

8259

Which mode is used to double handshakes in 8255

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Mode 0

Mode 1

Mode 2

Mode 3

How many modes in 8254

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2

4

6

8

The register can be divided are.

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3

4

5

6

How many types of primary register.

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1

2

3

4

The growth of vacuum tube technology has been listed as follow.

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1946-1957

1958-1964

1985-1999

None

Which are used for port A in 8255 mode 1.

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PC0-PC2

PC3-PC7

PC6-PC7

PC3-PC5

The growth of transistor technology in

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1946-1967

1958-1964

1985-1999

None

The mode of DMA are

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Single transfer

Transfer

Repeated Sigel transfer

All of these

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PPSC Computer Science Chapter 17 Microprocessor And Assembly Language Online Test MCQs With Answers

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