Free Printable microprocessor

1.

Memory size of 8086 microprocessor

a)

1MB

b)

4KB

c)

256 bytes

d)

128bytes

2.

The number of General Purpose Registers present in 8086 microprocessor

a)

4

b)

14

c)

10

d)

34

3.

The starting address of the segment is called

a)

base address

b)

offset address

c)

effective address

d)

none of the above

4.

CX is associated with which instruction

a)

add

b)

loop

c)

inc

d)

dec

5.

NMI stands for

a)

Not memory instruction

b)

not maskable instruction

c)

non maskable instruction

d)

none of the above

6.

Address latch enable pin is used to

a)

multiplex address and data lines

b)

demultiplex address and data lines

7.

MOV AX,[1234H] Type of addressing mode used

a)

Immediate addressing mode

b)

direct addressing mode

c)

register relative mode

d)

base index mode

8.

MOV CX,[BX+DI] type of addressing mode

a)

register relative addressing mode

b)

base plus index addressing mode

9.

NEG (Negate) instruction does the following instuction

a)

2s complement

b)

1s complement

10.

After using Shift Arithmetic Right instruction the BL register containing 10101001 becomes

a)

11010100

b)

01010011

11.

CMP does

a)

internal subtraction

b)

internal addition

12.

Memory supported by microprocessor depend upon ............

a)

control bus

b)

address bus

c)

data bus

d)

all of above

13.

How many bit data can be calculated by 8085 microprocessor

a)

8 bit

b)

16 bit

c)

4 bit

d)

64 bit

14.

How much memory supported by 8085 microprocessor

a)

1 GB

b)

4 GB

c)

64 KB

d)

1 MB

15.

How many flags in 8085 microprocessor architecture

a)

5

b)

2

c)

6

d)

8

16.

Which flag is not used in programming

a)

AC flag

b)

Z flag

c)

P flag

d)

C flag

17.

Size of ALU in 8085 microprocessor

a)

4 bit

b)

16 bit

c)

8 bit

d)

32 bit

18.

Address/Data bus (AD₀-AD₇) is

a)

Multiplex and bidirectional bus

b)

Demultiplex and bidirectional bus

c)

multiplex and unidirectional bus

d)

Demultiplex and unidirectional bus

19.

LDA instruction function is

a)

Load ALU

b)

Load Flag

c)

Load Accumulator

d)

All of above

20.

ADD B is

a)

Airthmatic instruction

b)

Logical instruction

c)

Data tranfer instruction

d)

None of above

21.

Size of PC in 8085 microprocessor

a)

16 bit

b)

8 bit

c)

32 bit

d)

64 bit

22.

What is first commercial microprocessor ?

a)

Intel 8008

b)

Intel 4004

c)

Intel 8085

d)

Zilog Z80

23.

Which of the following is not a microcomputer?

a)

general purpose calculator

b)

laptop

c)

desktop

d)

programmable calculator

24.

Is a single chip consisting of a microprocessor, memory and input/output ports.

a)

microcomputer

b)

cpu

c)

microcontroller

d)

computer

25.

A machine best regarded as a system incorporating a CPU and associated hardware.

a)

microcomputer

b)

cpu

c)

microcontroller

d)

calculator

26.

A central processing unit on a single-chip.

a)

microcomputer

b)

microprocessor

c)

microcontroller

d)

calculator

27.

4-bit word is commonly known as?

a)

word

b)

byte

c)

bit

d)

nibble

28.

8-bit word is commonly known as?

a)

word

b)

byte

c)

bit

d)

nibble

29.

Computers communicate and operate in

a)

word

b)

letter

c)

bits

d)

number

30.

Computer can do the following except :

a)

sort

b)

correlate

c)

merge

d)

self-learn

31.

Largest Data bus available today:

a)

16-bit

b)

32-bit

c)

64-bit

d)

128-bit

32.

How many Interrupts 8085 contains

a)

4

b)

5

c)

6

d)

8

33.

Which is Non Maskable Interrupt

a)

INTR

b)

RST7.5

c)

TRAP

d)

RST6.5

34.

Which is Non-Vectored Interrupt

a)

INTR

b)

RST 7.5

c)

TRAP

d)

RST6.5

35.

EI stands for

a)

Enable Internet

b)

Enable Interrupt

c)

Enable Information

d)

None

36.

ISR Stands for

a)

Internet service router

b)

Internet Service Road

c)

Interrupt Service road

d)

Interrupt Service Routine

37.

DMA stand for

a)

Direct memory access

b)

Direct management access

c)

Direct mobile access

d)

Direct memory application

38.

SIM in Microprocessors Stands for

a)

subscriber identity module

b)

subscriber identity management

c)

Set Interrupt Maskable

d)

Set Internet Maskable

39.

RIM in Microprocessor stands for

a)

Read Interrupt Maskable

b)

Ready Interrupt Maskable

c)

Read Interrupt Mark

d)

Ready Interrupt Mark

40.

what is the use of EI and DI instruction

a)

allows Interrupt & allows Interrupt

b)

allows Interrupt & blocks Interrupt

c)

blocks Interrupt & allows Interrupt

d)

blocks Interrupt & blocks Interrupt

41.

Types of Interrupts

a)

TRAP, RST7.5, RST.6.5, RST5.6, INTA

b)

TRAP, RST 9.5, RST.6.5, RST5.6, INTR

c)

TRAP, RST7.5, RST.6.6, RST5.6, INTR

d)

TRAP, RST7.5, RST.6.5, RST5.5, INTR

42.

How many General Purpose Register does 8085 MP contain

a)

2

b)

8

c)

4

d)

6

43.

Which is the register holds result of an Operation

a)

Register B

b)

Register A

c)

Register C

d)

Register D

44.

STACK POINTER IS

a)

8 BIT

b)

20 BIT

c)

4 BIT

d)

16 BIT

45.

8085 PIN DIAGRAM CONSISTS OF _______ PINS

a)

20

b)

10

c)

40

d)

30

46.

HOW MANY FLAG BITS are used in MP 8085

a)

5

b)

3

c)

8

d)

2

47.

IF SIGN FLAG IS 0

a)

RESULT IS +VE

b)

RESULT IS -VE

c)

RESULT IS ZERO

d)

RESULT IS NON ZERO

48.

EXPANSION OF ALE

a)

Address Latch Enable

b)

Address Location Enable

c)

Accumulator Latch Enable

d)

Address Latch Electric

49.

Bit P in flag register stands for

a)

Power

b)

Parity

c)

Part

d)

None

50.

Reset and Set is

a)

0 and 1

b)

1 and 0

c)

0 and 0

d)

1 and 1

51.

MVI stands for

a)

Move Immediate

b)

Move Incorrect

c)

Made Immediate

d)

Mode Immediate

52.

PC in register array stands for

(a)

53.

PC Register is of _____ Bits

a)

8

b)

16

c)

5

d)

4

54.

SUB B performs

a)

B-A and store in A

b)

B-A and store in B

c)

A-B and store in A

d)

A-B and store in B

55.

STA 16-Bit Address instruction is

a)

Store Accumulator

b)

Save Accumulator

c)

Store Address

d)

Save Address

56.

Address lines of 8085 mp is

a)

16 lines

b)

8 lines

c)

4 line

d)

20 lines

microprocessor

Total questions: 56

Worksheet time: 28mins

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