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Main components of a computer system

Total questions: 60

Worksheet time: 30mins

Name
Class
Date
1.

RAM is a memory used to store information that is permanent

a)

True

b)

False

2.

Read-only memory is an internal chip where data is temporarily stored when running applications

a)

True

b)

False

3.

A type of memory where data is lost when the computer is switched off

a)

HDD

b)

USB

c)

ROM

d)

RAM

4.

A device that must always be connected to an external power source to work

a)

Laptop

b)

Desktop

c)

Smartphone

d)

Tab

5.

ROM is volatile

a)

True

b)

False

6.

Which is not true about desktop computers

a)

Have a larger screen

b)

Need constant power supply

c)

Easy to upgrade

d)

Portable

7.

Identify the device

a)

Hard disk drive

b)

CD

c)

USB

d)

Steel Plate

8.
______ is nonvolitile and refers to memory chips storing permanent data and instructions.
a)
RAM
b)
read-only memory (ROM)
c)
flash memory
d)
firmware
9.
What is this component called?
a)
CUP
b)
CPU
c)
PUC
d)
UCP
10.
Is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.
a)
USB
b)
ROM
c)
CPU
d)
UPS
11.
A computer memory that acts as the main storage available to user for programs and data
a)
RAM
b)
URL
c)
ROM
d)
flash drive
12.
Is an electrical device that supplies electric power to an electrical load. The primary function of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load.
a)
USB
b)

CPU

c)
RAM
d)
Power Supply
13.
What is this component called?
a)
Spinning Disk Drive
b)
Optical Disk Drive
c)
Hard Disk Drive
d)
Floppy Disk Drive
14.
Identify this computer part.
a)
CPU
b)
hard disk drive
c)
RAM module
d)
motherboard
15.

Which component of the computer, stores the data and programs which the computer is CURRENTLY using?

a)

Primary Storage (RAM)

b)

Secondary Storage (HDD/SSD)

c)

CPU

d)

Motherboard

16.

Where the operating system, programs and data are permanently stored is called what?

a)

Primary Storage

b)

Secondary Storage

c)

Tertiary Storage

d)

Backup

17.

What happens to the contents of the RAM when the computer is turned off?

a)

It is deleted / lost

b)

It is sent back to the secondary storage

c)

It is processed by the CPU

d)

It is stored until the computer is turned back on.

18.
What is this?
a)
Harddrive
b)
Tower
c)
Motherboard
d)
DVD
19.
The mouse is connected to your computer via what type of port?
a)
Mouse Port
b)
USB Port
c)
PS 2 Port
d)
Serial Port
20.

The basic purpose of a power supply is to

a)

Forward bias

b)

Provide one or more fixed voltages

c)

Reverse bias

d)

All of the above

21.
Which of the following devices can supply backup power to a PC when the electricity fails and provides for line conditioning as well? 
a)
SPS
b)
UPS
c)
Line Conditioner
d)
Surge suppressor
22.
When are you subjecting your computer to the greatest risk of external power problems? 
a)
When you plug your computer directly into the wall socket 
b)
When you plug your computer directly into a line conditioner
c)
When you plug your computer directly into a surge suppressor 
d)
When you plug your computer directly into an uninterruptible power supply 
23.
Which of the following terms describes over-voltage in a power line?
a)
Blackout
b)
Brownout
c)
Line Noise
d)
Power Surge
24.

The Server is the process which provides requested services for the Client.

a)

True

b)

False

25.

Computer that sends & receives data to & from computers on a network

a)

Network

b)

Computer

c)

Motherboard

d)

Server

26.

What is this?

a)

Switch

b)

Network Interface Card

c)

Server

d)

Network Cables

27.

A tiny computer that can be held in one hand.Can be used to arrange appointments, to-do lists, load music, games etc.

a)

PDA

b)

Mini Computers

c)

Super Computers

d)

Mainframe

28.

Name this type of computer system.

a)

Super Computers

b)

Micro Computers

c)

Mini Computers

d)

Mainframe

29.

What does the acronym PDA means?

a)

Personal Data Assistants

b)

Profile Digital Aid

c)

Personal Digital Assistants

30.

Micro Computers are also called:

a)

Hand Held Computers

b)

Micro Controllers

c)

Personal Computers

d)

Enterprise Servers

31.

Which type of computer is used for weather forecasting?

a)

Super Computers

b)

PDA

c)

Mainframe Computers

d)

Wearable Computers

32.

The fastest, most powerful and most expensive computers.

a)

Embedded Computers

b)

Super Computers

c)

PDA

d)

Mainframe Computers

33.
Where is ROM usually found inside a computer?
a)
Inside the CPU
b)
As part of the hard drive
c)
On the motherboard
d)
With the CD drive
34.

What is a collection of wires called that sends data and addresses around the CPU?

a)

A bus

b)

A connection

c)

A link

d)

A cable

35.

What register is connected directly to the address bus?

a)

Memory Address Register

b)

Memory Data Register

c)

Program Counter

d)

Current Instruction Register

36.

Which of these is NOT a stage of the FDE cycle?

a)

Fetch

b)

Execute

c)

Decide

d)

Decode

37.

Which of these does not happen in the Fetch stage?

a)

The Program Counter is incremented by 1

b)

The value in the Program Counter is sent to memory on the address bus

c)

The value returned from memory on the data bus is stored in the current instruction register

d)

The value returned from memory is added to the value in the accumulator.

38.

Which of these is NOT a bus in the CPU?

a)

Address bus

b)

Data bus

c)

Control bus

d)

Execute bus

39.

What is the part of the CPU called that performs calculations?

a)

ALU

b)

Control Unit

c)

Program Counter

d)

Memory

40.
Data and Instructions in use are stored in the
a)
Processor
b)
Embedded System
c)
Hard Disk Drive
d)
Main Memory
41.
This would perform an operation such as 5+8
a)
Arithmetic Logic Unit
b)
Accumulator
c)
Cache
d)
Control Unit
42.

Computer memory which allows the simultaneous read and write operations

a)

ROM

b)

RAM

c)

EPROM

d)

EEPROM

43.

Cray-11 is a

a)

Super computer

b)

Main-frame computer

c)

Mini computer

d)

Micro computer

44.

The most frequently usedinstructions of a computer program are likely to be fetched from(PNB PO 2008)

a)

Hard disk

b)

Cache memory

c)

RAM

d)

ROM

45.

Which is not an integral part of computer(SBI Clerk 2012)

a)

CPU

b)

Mouse

c)

Monitor

d)

UPS

46.

What acts as an intermediary between the processor and the Main Memory?

a)

Clock

b)

Cache

c)

Bus

d)

User

47.

What is held in cache?

a)

All of the programming instructions

b)

Instructions that have been processed

c)

Commonly used instructions and data

d)

Data that hasn’t been used for a long time

48.

This sends signals such as “I/O Read”

a)

Control Unit

b)

Arithmetic Logic Unit

c)

Accumulator

d)

Cache

49.

This sends signals such as “Memory write”

a)

Control Unit

b)

Cache

c)

Arithmetic Logic Unit

d)

Accumulator

50.

Which component generates addresses

a)

Secondary Storage

b)

Processor

c)

Main Memory

d)

Control Unit

51.

The device that connects various computer components...

a)

Memory

b)

Bus

c)

Hard Disk

d)

I/O Module

52.

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

a)

Fetch-decode-execute cycle

b)

Decode-execute-fetch- cycle

c)

Execute-decode-fetch- cycle

d)

Execute-fetch-process-cycle

53.
What is this process called:
The CPU makes sense of the instruction it has just fetched.
a)
Decode
b)
Execute
c)
Process
d)
Fetch
54.
It is possible to improve the performance of a computer by choosing a CPU with a higher clock speed
a)
False
b)
True
55.
What does MAR stand for?
a)
Main Address Register
b)
Memory Address Register
c)
Massive Address Register
d)
Minimal Age Readable
56.
The stages required for processing are known as the....
a)
Fetch-Execute-decode
b)
Process-decode-fetch
c)
Fetch-Decode-Execute
d)
Process
57.
When the CPU fetches data it makes use of a vital path called?
a)
The Address walk
b)
The Address Bus
c)
The bus
d)
The address plane
58.

____________ enables the processor to access data quickly whenever they are needed.

a)

CU

b)

Cache

c)

Memory

d)

Register

59.

The ALU works on the instructions and data held in the _______________

a)

Notebook

b)

Registers

c)

Copy Pad

d)

I/O devices

60.

The fastest memory in the computer system is _____________

a)

ROM

b)

RAM

c)

Cache

d)

None of these

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