Computer Hardware MCQs

Prof. Fazal Rehman Shamil

Solved MCQs of Computer Hardware (Questions Answers).

CS abbriviation of:
A.Cost segment
B.Coot segment
C.Code segment
D.Counter segment
MCQ Answer: The code segment


The acculatator has 16 bit wide and is called:

A.AH
B.AX
C.AL
D.DL
MCQ Answer: AX


Select the number of bits which is the instruction pointer is wide:

A.64 bit
B.32 bit
C.16 bit
D.128 bit
MCQ Answer: 16 bit


Select the type of addressing in memory:

A.Physical address
B.Logical address
C.Both A and B
D. None of these

MCQ Answer: Both A and B


Select the address of a memory is a 20-bit address for the 8086 microprocessor:

A.Logical
B.Physical
C.Both
D.None of these
MCQ Answer: Physical


EA abbreviation of:

A.Electrical address
B.Effective address
C.Effect address
D.None of these

MCQ Answer: Effective address


BP abbreviation of:

A.Base pointer
B.Bit pointer
C.Bus pointer
D.Byte pointer
MCQ Answer: Base pointer


DS abbreviation of:
A.Declare segment
B.Direct segment
C.Data segment
D.Divide segment

MCQ Answer: Data segment


Select the following Which is the segment:

A.SS: Stack segment
B.DS: data segment
C.CS: The code segment
D.ES:extra segment
E.All of these
MCQ Answer: All of these


DI abbreviation of:

A.Defect index
B.Destination index
C.Definition index
D.Delete index

MCQ Answer: Destination index


Select the architecture that is used by the external system bus architecture is created;

A.Pascal
B.Von Neumann
C.Charles Babbage
D.Dennis Ritchie
MCQ Answer: Von Neumann


Select from the following Which is not the control bus signal:

A.RESET
B.WRITE
C.READ
D.None of these
MCQ Answer: RESET


PROM abbreviation of:

A.Programmer read and write memory
B.Programmable read-write memory
C.Programmable read‐only memory
D. None of these

MCQ Answer: Programmable read‐only memory


EPROM abbreviation of:

A.Electrically Programmable read-write memory
B. Erasable Programmable read‐only memory
C.Electrically Programmable read‐only memory
D.None of these

MCQ Answer: Erasable Programmable read‐only memory


Select the type of microcomputer memory:
A.Contents
B.Address
C.Both A and B
D.None of these

MCQ Answer: C. Both A and B


Secondary memory is used to store____:

A Compiler.
B.Program store code
C.Operating system
D.All of these

MCQ Answer: All of these


Select the second name of Secondary memory;

A.Backup store
B.Auxiliary
C.Both A and B
D.None of these
MCQ Answer: Both A and B


Customized ROMS are knowns as:

A.EPROM
B.Flash ROM
C.Mask ROM
D.None of these

MCQ Answer: Mask ROM


The RAM which is design through bipolar transistors is known as;

A.Static RAM
B.Dynamic RAM
C.Permanent RAM
D.DDR RAM
MCQ Answer: Static RAM


Each memory location contain;

A.Contents
B.Address
C.Both A and B
D.None of these

MCQ Answer: Both A and B


Select the name of a type of RAM that needs regular mentioned;

A.Permanent RAM
B.Static RAM
C.Dynamic RAM
D.SD RAM
Answers; Dynamic RAM


Select the name of RAM which is created using MOS transistors:

A.Static RAM
B.Dynamic RAM
C.Permanent RAM
D.SD RAM

Answers; Dynamic RAM


A microprocessor repeat instructions from :

A.Main memory
B.Cache memory
C. Control memory
D.Virtual memory

Answers; Main memory


The lower red curvy arrow show that the CPU places the address extracted from the memory location on the_____:

A.System bus
B.Address bus
C.Control bus
D.Data bus

Answers; Address bus


The CPU convey out a ____ signal to specify that correct data is available on the data bus:

A.Write
B.Read
C.Both A and B
D.None of these
Answers; Write


The CPU separate the ___ signal to complete the memory write operation:

A.Write
B.Read
C.Both A and B
D.None of these

Answers; Read


BIU abbreviation stand FOR:

A.Bess interface unit
B.Bus interface unit
C.A and B
D.None of these
Answers; Bus interface unit


EU abbreviation of :

A.Execute unit
B.Execution unit
C.Exchange unit
D.None of these

Answers; Execution unit


Select from the following Which is used to store an important part of data during subroutines and interrupts:

A.Accumulator
B.Queue
C.Stack
D.Data register

MCQ Answer: Stack


when the data in the stack is called:

A.Pulling
B.Pushed
C.Pushing data
D.None of these

MCQ Answer: Pushing data


Select the main part of the CPU;

A.Control Unit and Registers
B.Registers and Main Memory
C.Control unit and ALU
D.ALU and bus

MCQ Answer: Control unit and ALU


Select the four categories of registers:

A.Segment registers
B.Pointer or index registers
C.General‐ purpose register
D.Other register
E.All of these
Answers; All of these


Eight of the register are called;

A.Pointer or index registers
B.General‐ purpose register
C.Segment registers
D.Other register

Answers; General‐ purpose register


The four index register can be used for:

A.Multipulation operation
B.Arithmetic operation
C.Subtraction operation
D.All of these
MCQ Answer: Arithmetic operation


IP abbreviation of:

A.Instruction paints
B.Instruction purpose
C.Instruction pointer
D.None of these
MCQ Answer: Instruction pointer


SI abbreviation of:

A.Source index
B.Stand index
C.Segment index
D.Simple index
MCQ Answer: Source index


ALE abbreviation of:

A.Address light enable
B.Address latch enable
C.Address lower enable
D.Address last enable
MCQ Answer: Address latch enable


NMI abbreviation of:

A.Non mistake interrupt
B.Non maskable interrupt
C.Both
D.None of these
MCQ Answer: Non-mask able to interrupt


Select the name of the segment which is the most important segment and it has the actual assembly language instruction to be executed by the microprocessor:
A.Data segment
B.Stack segment
C.Code segment
D.Extra segment

MCQ Answer: The code segment


The balance of a particular segment ranges from _________:

A.000H to FFFH
B.00H to FFH
C.0000H to FFFFH
D.00000H to FFFFFH

MCQ Answer: 0000H to FFFFH


The pin layout of 8086 is available in the________:
A.50 pin
B.40 pin
C.30 pin
D.20 pin
MCQ Answer: 40 pin


DIP abbreviation of:

A.Deal inline package
B.Direct inline package
C.Dual inline package
D.Digital inline package
MCQ Answer: Dual inline package


Select the factors of cache memory:

A.Architecture of the microprocessor
B.ize organization of the cache
C.Properties of the programs being executed
D.All of these

MCQ Answer: All of these


Select the name of memory which is usually the first level of memory access by the microprocessor:

A.Main memory
B.Data memory
C.Cache memory
D.All of these
MCQ Answer: Cache memory


Select the name of memory Which is the small amount of high‐ speed memory used to work directly with the microprocessor:

A.Cost
B.Case
C.Cache
D.Coos
MCQ Answer: Cache


Select the name of memory when cache usually gets its data from the_________ whenever the instruction or data is need by the CPU:

A Cache memory
B.Case memory
C..Main memory
D.All of these
MCQ Answer: Main memory


Microprocessor backing that is available in the cache is called______:

A.Cache line
B.Cache hits
C.Cache memory
D.All of these

Answer Cache hits


Microprocessor reference that is not available in the cache is called_________:
A.Cache misses
B.Cache line
C.Cache hits
D.Cache memory
MCQ Answer: Cache misses


Which reason the microprocessor to instantly stop its current activity:

A.INTERUPT signal
B.RESET signal
C.Both
D.None of these
MCQ Answer: RESET signal


Which factor is responsible for all the outside world communication by the microprocessor:

A.PIU
B.BIU
C.TIU
D.LIU
MCQ Answer: BIU


INTR: it inferred the__________ signal:

A.INTRRUPT RIGHT
B.INTRRUPT REQUEST
C.INTRRUPT RONGH
D.INTRRUPT RESET
MCQ Answer: INTERRUPT REQUEST


Which is the microprocessor contains;

A.Register section
B.Control unit
C.One or more ALU
D.All of these

MCQ Answer: All of these


The register used to store?

A.memory
B.operands
C.data
D.None of these

MCQ Answer: data


Select the example of Accumulator based microprocessor;

A.Motorola 6809
B.Intel 8085
C.A and B
D. None of these
MCQ Answer: A and B


A set of the register which accommodate are:

A.memory addresses
B.data
C.result
D.all of these
MCQ Answer: D. all of these


Select the first two types of register:

A.dedicated register
B.general purpose register
C.A and B
D.none of these
MCQ Answer: C. A and B


Select the name of the typically dedicated register is:
A.IR
B.PC
C.SP
D.All of these
MCQ Answer: D. All of these


BCD abbreviation of:

A.Binary coded decoded
B.Binary coded decimal
C.Both a & b
D.none of these
MCQ Answer: Binary coded decimal

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