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Micro Processor Basics

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Identify the addressing mode

MOV CX, [SI + 0A20H]

a)

Immediate

b)

Register Indirect

c)

Direct

d)

Indexed

2.

The process of obtaining data or instruction fron memory is called...

a)

Decode

b)

Execute

c)

Fetch

d)

Store

3.

Decode is the process of....

a)

translating the instruction into signals the computer can execute

b)

obtaining a program instruction or data item from memory

c)

writing the result to memory

d)

carrying out the commands

4.
Identify this computer part.
a)
CPU
b)
hard disk drive
c)
RAM module
d)
motherboard
5.
Indicates how fast the CPU can run
a)
Cache size
b)
Core
c)
Intel
d)
Clock speed
6.
What is the full name of the component referred to as the PC
a)
Product Counter
b)
Program Counter
c)
Packet Counter
d)
Personal Computer
7.
Which of these registers stores the result of calculations
a)
MAR
b)
MBR
c)
Accumulator
d)
CIR
8.
What is the purpose of a 'Bus' in a computer system?
a)
Carry data to and from internal components
b)
execute user's instructions
c)
control flow of data
d)
connects the CPU to motherboard
9.
The Accumulator is a type of what?
a)
Register
b)
Buffer
c)
RAM
d)
Cache
10.
Used to carry the address to which the data is being transmitted.
a)
Control Bus
b)
Address Bus
c)
Memory Address Register (MAR)
d)
Memory Data Register (MDR)
11.
Used to send control signals from control unit to other parts of the processor
a)
Control Bus
b)
Control Unit (CU)
c)
Address Bus
d)
Current Instruction Register (CIR)
12.
Which of these numbers is a binary number?
a)
159
b)
FFh
c)
010110
d)
All of these are binary numbers
13.

In 8085, 16-bit address bus, which can address upto?

a)

16KB

b)

32KB

c)

64KB

d)

128KB

14.

8086 Microprocessor supports _______ modes of operation.

a)

2

b)

3

c)

4

d)

5

15.

8086 can access up to?

a)

512KB

b)

1Mb

c)

2Mb

d)

256KB

16.

The instruction, MOV AX, 1234H is an example of -

a)

Register Addressing mode

b)

Immediate Addressing mode

c)

Based indexed Addressing mode

d)

Direct Addressing mode

17.

8085 microprocessor has how many pins -

a)

41

b)

39

c)

40

d)

30

18.

Register pair used to indicate memory-

a)

B and C

b)

D and E

c)

H and L

d)

W and Z

19.

The Intel 8086 microprocessor is a _______ processor

a)

16 bit

b)

32 bit

c)

8 bit

d)

4 bit

20.

A machine language instruction format consists of -

a)

Operation code field

b)

Operation code field & operand field

c)

Operand field

d)

none of the mentioned

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