ICSE CHAMP

Parts of a Computer

Brain Developer

A. Fill in the blanks:

1. A Computer works with data and instructions.

2. A computer can store a large amount of information.

3. A Monitor displays all the works that we do on a computer.

4. A Mouse is used to point, select and move any object on the computer.

5. A CPU does all the calculations and displays the result on the monitor.

B. State true or false.

1. A computer has an IQ. [F]

2. The output printed on paper is known as soft copy. [F]

3.  A computer has four main parts. [T]

4.  MU stands for Memory Utility. [F]

5.  A CPU is made up of AU and LU. [F]

6.  A monitor is also known as VDU. [T]

C. Match the following.

D.  Application Based Questions:

1.   Mary is reading the soft copy of a letter. Which part of a computer is she using?

= Monitor;

2.   Supriya wants to do painting on a computer. Which computer device will you suggest her to use for making a colourful drawing?

= Mouse;

3.   Sourabh’s mother has asked him to take out 50 copies of birthday invitation letter: Which device should he use to get the hard copy?

= Printer;

E.   Multiple Choice Questions:

1.   ............... can be words, numbers, pictures or sound.

i)     Data. [✓] 

ii)    Processing. [ ]

iii)   Meaningful Information. [ ]

2.   A computer displays ............... after processing the data.

a.    Input. [ ]

b.   Process. [ ]

c.    Output. [✓]

3.   ............... controls all parts of a computer system.

a.    ALU. [ ]

b.   CU. [✓]

c.    MU. [ ]

4.   The ............... monitors consumes least power.

a.    LCD. [ ]

b.   CRT. [ ]

c.    LED. [✓]

F.   Write Full Form of the following:

1.   IPO = Input Process Output;

2.   CU = Control Unit;

3.   CPU = Central Processing Unit;

4.   ALU = Arithmetic and Logic Unit;

5.   VDU = Visual Display Unit;

6.   MU = Memory Unit;

7.   IQ = Intelligence Quotient;

8.   LCD = Liquid Crystal Display;

G. Answer the following:

1.   What is a computer?

= A computer is a machine that works with the data and instructions given by the user. It works on IPO cycle.

2.   How do you enter data and instructions on a computer?

= We use keyboard and mouse to enter data and instructions on a computer.

3.   What do you call the information, that you enter into the computer?

= The information that we enter into the computer is called data.

4.   Which part of a computer shows the output?

= Monitor shows the output.

5.   Name the device that is known as the brain of a computer?

= CPU (Central Processing Unit)

6.   List any two features of a computer.

= The two features of a computer are –

i)    A computer works very fast and can do large calculations.

ii)   Computer does not make any mistake.

7.   Mention any two disadvantages of a computer.

= The two disadvantages of a computer are –

i)    A computer does not have any IQ.

ii)   If you enter wrong inputs, it will give wrong result.

Chapter – 2

Hardware and Software

Brain Developer

 A.  Fill in the blanks:

1.   The parts of a computer, that can be touched or seen are called Hardware.

2.   The devices used for storing data are called Storage devices.

3.   The devices that give results after processing are called Output devices.

4.   A set of instructions given to a computer is called Software.

5.   The Operating System manages the overall working of a computer.

B.  State True or False:

1.   The software that can do a specific type of work, is called System Software. [F]2.   A scanner is an input device. [T]

3.   The Paint program is used for drawing pictures. [T]

4.   A printer is an output device. [T]

5.   The devices that give us output, are called input devices. [F]

C.  Match the following.