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Inside The Book
The key features of the series have been designed to ensure better learning and assessment.
Learning Resources
Digital Versatile Disc (DVD)
A DVD looks similar to a CD. It is used to store a huge
amount of data. The storage capacity of a DVD is more
than a CD but less than a hard disk.
Pen Drive DVD
Computer Keyboard It is a small storage device, also known as the USB Flash drive. It
Pen Drive is used to transfer data from one computer to another. It can be
easily carried in a pocket.
Chapter
04 Tech
Your Aim Funda The computer has special ports for 4. Playing games for a long time on the computer
to learn about: pen drive called the USB Ports. We distracts us from doing our daily tasks.
Alphabet Keys insert the pen drive into a USB port USB
Number Keys
Special Keys to store data in it. Port 5. Sometimes our computers may get infected by
Function Keys 3.
Combinational Keys a virus. A computer virus is a harmful program
Punctuation Keys
Symbol Keys that doesn’t let a computer work correctly.
Storage devices act as both input and output devices.
You have already learnt that a keyboard is a main part of a computer. It has many
If animals had their own types of computers, what would a computer
keys such as alphabet keys, number keys, and special keys, that are used for typing.
Let us learn about these keys in detail. for a cat or a dog look like, and what programs would it have?
Escape Key Function keys ................................
Backspace key Hands On
Number keys
COMPUTER VS HUMAN
Number The parts of a computer are divided into three categories—input devices, A computer can do a lot of things in a better manner than a human.
output devices and storage devices.
keys
Tab key Input devices are used to instruct the computer what to do. Computer Human them into your notebook or scrapbook. #Creativity & Innovativeness
Caps Lock Keyboard, mouse, scanner and microphone are some of the input devices.
key Output devices are used to give the result.
Collect computerised bills that you receive from any local shop or mall and paste
devices.
Monitor, printer, speakers, headphones and headset are some of the output
Alphabet keys Storage devices are used to store our work. #Experiential Learning
Spacebar key Arrow keys
Shift keys Hard disk, CD, DVD and pen drive are some of the storage devices. With the help of your teacher, visit the school’s office and see how computers
Enter keys are used to keep the student’s records.
ALPHABET KEYS
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Alphabet keys are used to type words and sentences. There are 26 alphabet keys
on the keyboard from A to Z. Teacher's Corner
I never make any mistakes.
I can make mistakes. the help of videos.
Clickipedia: This 3. Take the children to show them an ATM.
1. Show how computers are used at different places like offices, shops, banks, hospitals, etc. with
2. Explain that all railway and airline ticketing is done by computers.
Computer Keyboard
35
section provides
I store a large amount of I may forget the information
information and never forget it.
interesting computer stored in my mind.
Computer—An Electronic Device
11
Your Aim: This facts. Think Tank: This 26 iPro (Ver. 4.1)-II
section describes encourage students Hands On: This
the objective of the to explore innovative section contains an
chapter. ideas and think activity for Home
beyond conventional assignment.
topics.
EXPLORE MORE
Tux Paint
Tux Paint is a free software for young children. It is commonly used for children to Tech The result we get on the monitor screen is called soft copy
draw and create paintings. Funda and the result we get on paper is called hard copy.
STEPS TO START TUX PAINT
2 Scroll to find
the letter T in the The Tux Screen,
Speakers
quickly. left pane. Click when it opens Digital Literacy Speakers are output devices that are used for listening to music,
Drag and drop is a very useful action. It can be used to move objects on the screen
on Tux Paint. looks like this.
release 1 Click on the voice and other sounds played from a computer. Speakers
press move Start button. Gl ssary
Headphones are small speakers used to hear the sound
3 Click on Tux Headphones
Paint (Full Screen). without causing any disturbance to others. They are worn
The main screen is divided into the following sections: Alphabet Keys
These keys are used to type words and sentences. There are 26 alphabet
keys on the keyboard. over the ears.
Up and Down Arrows Brushes Tool Headphone
Drag and drop Toolbox Clicking on these arrows Selector This tool is used for freehand drawing. A headset is a combination of headphones and a microphone. Headset
Headset
Reb t It contains allow you to see more used to It is
symbols.
a variety
STORAGE DEVICES
of tools.
select the Compact Disc A CD is a round and shiny disc. It is used to store a smaller amount of data.
options.
Drawing Area/Canvas desired Other than input, output, and processing devices, a computer also uses storage
A mouse is a pointing device.
This space is used for devices. These are used to store our work. Some of the storage devices are:
mouse pointer or pointer. drawing Input
While moving the cursor, an arrow is displayed on the screen called as the
It is the instruction given to the computer in the form of numbers, letters
or symbols.
Mouse is always kept on a mouse pad.
Colors
Hard Disk
Palette
screen to move. It contains Monitor The hard disk is rectangular in shape. It is fixed inside the CPU
Optical mouse has LED sensor at its bottom that helps the pointer on the
the colours. Help Area It is an output device that looks like a television screen. box. It can store a huge amount of information. Nowadays, Hard Disk
It gives you tips and
Single-click or click is used for selecting an item on the computer screen.
details of the selected tool. Mouse external hard disk is also available.
Double-click opens the selected item.
of a button.
It is an input device that sends instructions to the computer with the click
Compact Disc (CD)
amount of data. You can play a CD by inserting it into the
Right-click displays a list of options of the selected item.
button. This is known as the scroll wheel. 64 iPro (Ver. 4.1)-I Output It is the result that we get after processing. A CD is a round and shiny disc. It is used to store a smaller
A computer mouse has a wheel in between the right button and the left
Drag and Drop can be used to move objects on the screen quickly.
Pointer CD/DVD drive. 29
The small arrow on the monitor is called pointer. Input and Output Devices
One
One Touch Learn CD
Section A (Objective) Protocol
A. Tick (3) the correct option. A protocol is set of standard rules used for communication.
1. Which of the following is not a function of a mouse?
a. Typing Explore More: This Right-click Pressing and releasing the right button once is called right-click.
b. Clicking
c. Dragging
Scanner Tech Funda: This
2. What is pressing the left mouse button once called?
paper to the computer.
a. Clicking It is an input device that is used to convert document or images from the
b. Double-clicking section provides
c. Right-clicking 88 88
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50 iPro (Ver. 4.1)-II
iPro (Ver. 4.1)-II section provides
Reboot: This section supplement topics Glossary: This practical information
provides a summary for extra knowledge. section contains or tips to the
of the chapter for
definitions of students.
quick recapitulation.
important IT terms.

