Data Entry and Keyboarding Skills — Class 9 IT notes CBSE code 402

Class 9 IT chapter 2 -Data Entry and Keyboarding Skills -notes

Information Technology Class 9 Notes. In this chapter Data Entry and Keyboarding Skills, we will gain knowledge of efficient and effective keyboarding skills and typing ergonomics that has become inevitable today. In this
unit, we will study about various types of keys, typing ergonomics and positioning of fingers on the keyboard
according to touch method of typewriting and use of typing software for learning keyboarding skills. For Class 9 IT CODE 402 this is UNIT 2 of the subject-specific skills. By going through these notes of Class 9 IT CODE 402 Unit 2: Data Entry and Keyboarding Skills you will complete your syllabus. All the topics covered here are according to the NCERT book class 9 and is according to the new syllabus.

Keyboarding Skills

Keyboard is the most common text-based input device.

A keyboard generally has more than 100 keys. Each key of a keyboard corresponds to a single symbol.

Some symbols require pressing and holding several keys simultaneously or in sequence. It allows entering alphabets, digits and symbols into the computer.

Keyboards are also used for computer gaming, either with regular keyboards or by using keyboards with special gaming features.

Types of Keys —

A computer keyboard contains the following types of keys:

1. Alphanumeric keys : All of the alphabet (A-Z) and numbers (0-9) on the keyboard.

2. Punctuation keys: All of the keys associated with punctuation, such as the comma (,), period (.), semicolon (;), brackets ([]), and parenthesis ({ }) and so on. Also, all of the mathematical operators such as the plus sign (+), minus sign (-), and equal sign (=).

3. Alt key: Short for Alternate, this key is like a second control key.

4. Arrow keys: There are four arrow keys to move the cursor (or insertion point) up (↑), down (↓), right (→), or left (←). Arrow keys can be used in conjunction with the

5. Shift or Alt keys: To move the cursor in more than one position at a time.

6.Backspace key: Deletes the character just to the left of the cursor (or insertion point) and moves
the cursor to that position.

7.Caps Lock key: It is a toggle key, which when activated, causes all alphabetic characters to be
uppercase.

8. Ctrl key: The control key is used in conjunction with other keys to produce control characters.
The meaning of each control character depends on which program is running.

9.Delete key: The Del key deletes the character at the current cursor position, or the selected object,
but does not move the cursor. For graphics-based applications, the delete key deletes the character
to the right of the insertion point.

10.Enter key or Return key: It is used to enter commands or to move the cursor to the beginning of the next line.

11. Esc key: The Escape key is used to send special codes to devices and to exit (or escape) from programs and tasks.

12.Function keys: Special keys labelled F1 to F12. These keys have different meaning depending on which program is running.

Numeric keypad

Numeric keypad is used when enormous numeric data is to be entered. This keypad is just like a simple calculator. It is normally located on the right hand side of computer keyboard. It contains numbers 0 to 9, addition (+), subtraction (–), multiplication (*) and division (/) symbols, a decimal point (.) and Num Lock and Enter keys.

Home keys
Alphabets ASDF are home keys for the left hand and; (semi-colon) LKJ for the Right Hand.

Guide keys
On a computer keyboard, keys ‘F’ and ‘J’ are called guide keys for left and right hand respectively.

Typing and deleting text
For typing text in a document you should
• click on the letters on the keyboard.
For deleting text in a document you should
• use the backspace key or the delete key. The
backspace key will remove text from behind
(to the left of) your cursor position.

Typing capital letters
To type capital letters, switch ON the Caps Lock by
pressing the key before typing.

There are two Shift keys on the
keyboard — to the bottom left and right of the letters.
The Shift key is used to access the top symbols that are
one of the keys with two characters.

Creating new lines and spaces between paragraphs
The Enter or return key is used to create new lines and
spaces between paragraphs.

Pointing devices

examples of point and draw devices are joystick,
light pea, touch pad or track ball and touch screen.

Mouse

Mouse is a pointing device used to point a particular
place on the screen and select to perform one or more
actions (Figure 2.3). It can be used to select menu
commands, resize windows, selecting actions from
screen icons, etc. A mouse primarily comprises of three
parts: the buttons, the handling area, and the rolling
object.

Mouse pointer
The mouse pointer allows to point on the screen.

Mouse operations

The common mouse actions are as follows:
(a) Click or left click: It is used to select an item.
Press down once on the left button with your
index finger.
(b) Double click: It is used to start a program or
open a file or trigger an action.
(c) Right click: It is used to display a set of commands
and available options. Move the mouse pointer to
the desired position, position your middle finger
on the right mouse button, keeping the mouse
still, click lightly with the middle finger on the
right button.
(d) Drag and drop: It allows to select and move an
item from one location to another. Position the
mouse on an object, hold down the left side of the
mouse, and drag the object.

Scroll: Many applications provide scrollbars on
right side of screen if the page length is more than
the monitor/screen length. Instead of using page
down key or arrow keys, one can use scroll key
of a mouse to scroll up or down. If the scroll key
is not available, one can click on the scroll bar
on the application screen with the let button of
the mouse. Use the scroll wheel on the mouse to
move the page on the screen up or down.
(f) Blocking: Blocking is another way of selecting
text. It is used to select text that needs to be edited
or formatted. Click at the beginning of the word
or sentence and hold down the left button, then
drag along the text and see it being highlighted in
black. At the end of the text or sentence release
the left button.
Typing ergonomics