Class 3 || COMPUTER CONNECT || Lesson 1. Components of a Computer

Page No. 9

Exercise

Oral Skills

1. Answer the following questions orally.

a. What is the purpose of an input device?

Ans: The purpose of an input device is to provide data and instructions to the computer.

b. What is an LCD?

Ans: LCD is a type of monitor.

c. What do you mean by processing?

Ans: By processing means working on the data on the basis of given instructions.

d. Name any two output devices.

Ans: Two output devices are the Monitor and Printer.

Writing Skills

Multiple Choice Questions

2. Tick the correct option.

a. A ____ gives output on the paper.

(i) Monitor

(ii) Printer

(iii) Keyboard

Ans: (ii) Printer

b. ____ is a type of monitor.

(i) LCD

(ii) Joystick

(iii) Scanner

Ans: (i) LCD

c. ____ is an input device.

(i) Keyboard

(ii) Printer

(iii) CPU

Ans: (i) Keyboard

d. ____ processes and stores the instructions that we feed into it.

(i) Monitor

(ii) CPU

(iii) Printer

Ans: (ii) CPU

3. Give full forms of the following.

(a) CPU: Central Processing Unit

(b) LCD: Liquid Crystal Display

(c) IPO: Input, Processing and Output

(d) CRT: Cathode Ray Tube

4. Answer the following questions.

a. What do you mean by processing?

Ans: By processing means working on the data based on given instructions.

b. What is an IPO cycle?

Ans: An IPO cycle is a process of the information before the input and output.

c. What is CPU?

Ans: The CPU is the main processing device which is made up of three main units - Arithmetic Logical Unit, Control Unit, and Memory Unit.

d. Write the types of monitors.

Ans: Two types of monitors are LCD (Liquid Crystal Display) and CRT (Cathode Ray Tube) monitor.

e. What is a mouse?

Ans: A mouse is an input device that is used to give commands to the computer.

Activity

Unscramble the following letters:

1. MUPCOTRE COMPUTER

2. POCRSINGS PROCESSING

3. OPUTUT OUTPUT

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