Practice Computer System Architecture Multiple Choice Questions with Answers Quiz-1

Q.1.

A stack pointer is

. a 16-bit register in the microprocessor that indicate the beginning of the stack memory.
. a register that decodes and executes 16-bit arithmetic expression.
. the first memory location where a subroutine address is store
. a register in which flag bits are stored

Q.2.

A floating point number that has a O in the MSB of mantissa is said to have

overflow
underflow
important number
undefined

Q.3.

Multiprogramming of the computer system increases

a.memory
b. storage
c.CPU utilization
d.cost

Q.4.

When the CPU decodes and executes an instruction and then repeats. This is called the..

Fetch-decode-execute cycle
Decode-execute-fetch- cycle
Execute-decode-fetch- cycle
Execute-fetch-process-cycle

Q.5.

An address in main memory is called

physical address
logical address
memory address
word address

Q.6.

The Control Unit

Controls the flow of data around the CPU and also decodes instructions
Only controls the flow of data around the CPU
Controls how much power is directed to all components within the computer
Only decodes instructions

Q.7.

A device/circuit that goes through a predefined sequence of states upon the application of input pulses is called

register
flip-flop
transistor.
counter.

Q.8.

Which statement best describes RAM?

Fast, permanent storage
Fast, volatile storage
Slow, volatile storage
Slow, permanent storage

Q.9.

Cache memory works on the principle of

locality of data
locality of memory
locality of reference
locality of reference & memory

Q.10.

What characteristic of RAM memory makes it not suitable for permanent storage?

too slow
unreliable
it is volatile
too bulky

Q.11.

Which of the following memories must be refreshed many times per second?

(A) EPROM
(B)ROM
(C)Static RAM
(D)Dynamic RAM

Q.12.

In computers, subtraction is generally carried out by

9’s complement
10’s complement
1’s complement
2’s complement

Q.13.

Generally Dynamic RAM is used as main memory in a computer system as it

consumes less power
has higher speed
has lower cell density
needs refreshing circuitary

Q.14.

MRI indicates

memory reference information.
memory reference instruction.
memory registers instruction.
memory register information

Q.15.

What is the purpose of Cache?

Performs Arithmetic and Logical operations
Decodes and directs instructions to be carried out
Processes graphical functions
Stores frequently used data and instructions

Q.16.

The main memory of the computer system is also called

a.non volatile
b. volatile
c.CPU utilization
d.cost

Q.17.

What is the full meaning of SIMD?

Single Instruction Multiple Data
Small Instruction Multiple Data
Single Instruction Multiplexing Data
Single Instruction Multiple Digits

Q.18.

What computer architecture simultaneously reads or writes data from the data memory

Von Neumann Architecture
PC Architecture
Storage processing Architecture
Harvard Architecture

Q.19.

What is usually held in the contents of RAM?

BIOS and Boot sequence needed to start the computer
Software programs stored within the computer
Operating System and currently running programs
Recently executed instructions in case they are needed again

Q.20.

Volatile memory that runs the Operating System and other applications

Virtual Memory
Registers
RAM
ROM

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