Question # 1

______ stores the instruction currently being executed.

Choose an answer

Instruction register

Current register

Both a and b

None

How many group of memory unit.

Choose an answer

three

Two

Four

One

Which mode is used to double handshakes in 8255

Choose an answer

Mode 0

Mode 1

Mode 2

Mode 3

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

Choose an answer

8251

8254

8255

8259

Cache can be controlled.

Choose an answer

16 KB - 2MB

17 KB - 2MB

18 KB - 2 MB

19 KB - 2MB

The growth of medium scale integration in.

Choose an answer

Till 1971

Till 1970

Till 1972

Till 1969

Which is the great importance's in modular programming

Choose an answer

Stack segment

Array segment

Queue segment

All of these

WE stand for

Choose an answer

Write enable

Wrote enable

Write envy

None

Which are used for port A in 8255 mode 1.

Choose an answer

PC0-PC2

PC3-PC7

PC6-PC7

PC3-PC5

How many bit or MAR register

Choose an answer

8 bit

16 bit

32 bit

64 bit

T1 is the time taken for the stage and there are n stages in the.

Choose an answer

Through out

Assembly line

Both a and b

None

CAD stand for.

Choose an answer

Computer aided drafting

Compare aided drafting

Both a and b

None

The mode of DMA are

Choose an answer

Single transfer

Transfer

Repeated Sigel transfer

All of these

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

Choose an answer

PCB

BUS

Both a and b

None

INTA stand for

Choose an answer

Interrupt acknowledge

Interrupt access

Interrupt address

None

How many parts of dedicated register.

Choose an answer

2

4

5

6

CISC stand for.

Choose an answer

Computer instruction system computer

Complex instruction set car

Complex instruction set computer

Resource instruction set computer

Which is a programmable communication interface.

Choose an answer

8255

8254

8251

8359

The clock period is denoted by

Choose an answer

Tp

T1+T2+T3.....................+ Tn

P1

None

The accelerator is 16bit wide and is called.

Choose an answer

AX

AH

AL

DL

The growth of SSI up to.

Choose an answer

100 device on a chip

200 device on a chip

300 device on a chip

400 device on a chip

More Classes

Other Links

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

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer