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250+ Microprocessor and Assembly Language Programming Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Science in Computer Science (BSc CS) .

1.

A microprocessor is a _______ chip integrating all the functions of a CPU of a computer.

A. multiple
B. single
C. double
D. triple
Answer» B. single
2.

Microprocessor is a/an _______ circuit that functions as the CPU of the compute

A. electronic
B. mechanic
C. integrating
D. processing
Answer» A. electronic
3.

Microprocessor is the ______ of the computer and it perform all the computational tasks

A. main
B. heart
C. important
D. simple
Answer» B. heart
4.

The purpose of the microprocessor is to control ______

A. memory
B. switches
C. processing
D. tasks
Answer» A. memory
5.

The first digital electronic computer was built in the year________

A. 1950
B. 1960
C. 1940
D. 1930
Answer» C. 1940
6.

In 1960's texas institute invented ______

A. integrated circuits
B. microprocessor
C. vacuum tubes
D. transistors
Answer» A. integrated circuits
7.

The intel 8086 microprocessor is a _______ processor

A. 8 bit
B. 16 bit
C. 32 bit
D. 4 bit
Answer» B. 16 bit
8.

The microprocessor can read/write 16 bit data from or to ________

A. memory
B. i/o device
C. processor
D. register
Answer» A. memory
9.

In 8086 microprocessor , the address bus is ________ bit wide

A. 12 bit
B. 10 bit
C. 16 bit
D. 26 bit
Answer» D. 26 bit
10.

The work of EU is ________

A. encoding
B. decoding
C. processing
D. calculations
Answer» B. decoding
11.

The 16 bit flag of 8086 microprocessor is responsible to indicate ___________

A. the condition of result of ALU operation
B. the condition of memory
C. the result of addition
D. the result of subtraction
Answer» A. the condition of result of ALU operation
12.

The CF is known as ________

A. carry flag
B. condition flag
C. common flag
D. single flag
Answer» A. carry flag
13.

The SF is called as ________

A. service flag
B. sign flag
C. single flag
D. condition flag
Answer» B. sign flag
14.

The OF is called as _______

A. overflow flag
B. overdue flag
C. one flag
D. over flag
Answer» A. overflow flag
15.

The IF is called as _________

A. initial flag
B. indicate flag
C. interrupt flag
D. inter flag
Answer» C. interrupt flag
16.

The register AX is formed by grouping ________

A. AH & AL
B. BH & BL
C. CH & CL
D. DH & DL
Answer» A. AH & AL
17.

The SP is indicated by ________

A. single pointer
B. stack pointer
C. source pointer
D. destination pointer
Answer» B. stack pointer
18.

The BP is indicated by _______

A. base pointer
B. binary pointer
C. bit pointer
D. digital pointer
Answer» A. base pointer
19.

The SS is called as ________

A. single stack
B. stack segment
C. sequence stack
D. random stack
Answer» B. stack segment
20.

The index register are used to hold _______

A. memory register
B. offset address
C. segment memory
D. offset memory
Answer» A. memory register
21.

The BIU contains FIFO register of size __________ bytes

A. 8
B. 6
C. 4
D. 12
Answer» B. 6
22.

The BIU prefetches the instruction from memory and store them in ________

A. queue
B. register
C. memory
D. stack
Answer» A. queue
23.

The 1 MB byte of memory can be divided into ______ segment

A. 1 Kbyte
B. 64 Kbyte
C. 33 Kbyte
D. 34 Kbyte
Answer» B. 64 Kbyte
24.

The DS is called as _______

A. data segment
B. digital segment
C. divide segment
D. decode segme
Answer» A. data segment
25.

The CS register stores instruction _____________ in code segment

A. stream
B. path
C. codes
D. stream line
Answer» C. codes
26.

The IP is ________ bits in length

A. 8 bits
B. 4 bits
C. 16 bits
D. 32 bits
Answer» C. 16 bits
27.

The push source copies a word from source to ______

A. stack
B. memory
C. register
D. destination
Answer» A. stack
28.

LDs copies to consecutive words from memory to register and ___________

A. ES
B. DS
C. SS
D. CS
Answer» B. DS
29.

Inc destination increments the content of destination by _______

A. 1
B. 2
C. 30
D. 41
Answer» A. 1
30.

IMUL source is a signed _________

A. multiplication
B. addition
C. subtraction
D. division
Answer» A. multiplication
31.

_________destination inverts each bit of destination

A. NOT
B. NOR
C. AND
D. OR
Answer» A. NOT
32.

The JS is called as ______

A. jump the signed bit
B. jump single bit
C. jump simple bit
D. jump signal it
Answer» A. jump the signed bit
33.

Instruction providing both segment base and offset address are called _____

A. below type
B. far type
C. low type
D. high type
Answer» B. far type
34.

The conditional branch instruction specify ___________ for branching

A. conditions
B. instruction
C. address
D. memory
Answer» A. conditions
35.

The microprocessor determines whether the specified condition exists or not by testing the ______

A. carry flag
B. conditional flag
C. common flag
D. sign flag
Answer» B. conditional flag
36.

The LES copies to words from memory to register and __________

A. DS
B. CS
C. ES
D. DS
Answer» C. ES
37.

The _________ translates a byte from one code to another code

A. XLAT
B. XCHNG
C. POP
D. PUSH
Answer» A. XLAT
38.

The _______ contains an offset instead of actual address

A. SP
B. IP
C. ES
D. SS
Answer» B. IP
39.

The 8086 fetches instruction one after another from __________ of memory

A. code segment
B. IP
C. ES
D. SS
Answer» A. code segment
40.

The BIU contains FIFO register of size 6 bytes called _____

A. queue
B. stack
C. segment
D. register
Answer» A. queue
41.

The ___________ is required to synchronize the internal operands in the processor CIK Signal

A. UR Signal
B. Vcc
C. AIE
D. Ground
Answer» A. UR Signal
42.

The pin of minimum mode AD0-AD15 has ____________ address

A. 16 bit
B. 20 bit
C. 32 bit
D. 4 bit
Answer» B. 20 bit
43.

The pin of minimum mode AD0- AD15 has _________ data bus

A. 4 bit
B. 20 bit
C. 16 bit
D. 32 bit
Answer» C. 16 bit
44.

The address bits are sent out on lines through __________

A. A16-19
B. A0-17
C. D0-D17
D. C0-C17
Answer» A. A16-19
45.

________ is used to write into memory

A. RD
B. WR
C. RD / WR
D. Chk
Answer» B. WR
46.

The functions of Pins from 24 to 31 depend on the mode in which _______ is operating

A. 8085
B. 8086
C. 80835
D. 80845
Answer» B. 8086
47.

The RD,WR,M/IO is the heart of control for a __________ mode

A. minimum
B. maximum
C. compatibility mode
D. control mode
Answer» A. minimum
48.

In a minimum mode there is a ___________ on the system bus

A. single
B. double
C. multiple
D. triple
Answer» A. single
49.

If MN/MX is low the 8086 operates in __________ mode

A. Minimum
B. Maximum
C. both (A) and (B)
D. medium
Answer» B. Maximum
50.

In max mode, control bus signal So,S1 and S2 are sent out in ____________ form

A. decoded
B. encoded
C. shared
D. un shared
Answer» B. encoded

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