Page 10 - Genius Kidz Tech Trekr-3

Points at a Glance

Ÿ A computer is an electronic machine that can perform any work very fast.
Ÿ The printer gives a copy of your work in printed form.
Ÿ The mouse is a pointing device which points things on the computer screen.
Ÿ CD ROM stores information permanently.

Ÿ CPU controls all the functions of the computer.
Ÿ Keyboard is used for typing information into the computer.

Ÿ Input devices help to enter data into the computer.
Ÿ Output devices give the result after processing data.

ü
A. Tick ( ) the correct option :
1. Which of the following is not an input device?

(i) keyboard (ii) mouse
(iii) printer

2. Which of the following is not an output device?
(i) keyboard (ii) speakers

(iii) headphone

3. Which one is true about computers?

(i) accurate (ii) very fast

(iii) can’t take decision on its own

4. A CPU has ____________ main parts.

(i) two (ii) four

(iii) three

B. Fill in the blanks using words given below :

CD-ROM, mouse, efficient, electronic, keyboard, electricity, durable

1. A computer is an ____________ machine.

2. A computer requires ____________ to work.

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