Data Entry and Keyboarding Skills Class 9 Notes pdf
Data Entry and Keyboarding Skills Class 9 Notes pdf Important Points
The ability to enter information through keyboard effectively and efficiently is called Keyboarding Skills
Touch Method of typing OR Touch typing method
Touch typing is a method of typing without looking the keys on the keyboard. Touch typing can
be done with two hands or by using a single hand also
A touch typist knows the location on the keyboard through muscle memory. A touch typist starts typing by placing his or her fingers on the “start position” in the middle row and knows which finger to move and how much to move it for reaching any required key.
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 () etc.
3. Arrow keys: There are four arrow keys to move the cursor (or insertion point) up (↑), down (↓), right (→), or left (←).
4. Backspace key: Deletes the character just to the left of the cursor.
5. Caps Lock key: It is a toggle key, which when activated, causes all alphabetic characters to be uppercase.
6. Delete key: The Del key deletes the character to the right of the cursor.
7. Enter key or Return key: It is used to enter commands or to move the cursor to the beginning of the next line.
8. Esc key: The Escape key is used to exit (or escape) from programs and tasks.
9. Function keys: Special keys labelled F1 to F12. These keys have different meaning depending on which program is running.
Q. What happen when a key is pressed from the keyboard?
Ans. When a key is pressed, electrical signals are transmitted to a micro‑controller in a coded form to the computer describing the character which corresponds to that key.
Numeric keypad is used when enormous numeric data is to be entered. It is normally located on the righthand 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.
NOTE: Some of the keyboards of laptops do not have a numeric keypad
Alphabets ASDF are home keys for the left hand and ; (semi-colon) LKJ are home keys for the right hand.
On a computer keyboard, keys ‘F’ and ‘J’ are called guide keys for left and right hand, respectively. Both contain a small raised tangible mark with the help of which the touch typist can place the fingers correctly on the home keys.
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.
For typing numbers in a document you should use the numbers lock or the numbers on the second row of keys on the keyboard.
Typing capital letters
To type capital letters, switch ON the Caps Lock by pressing the key before typing. To switch it off, tap on the Caps lock key again before typing.
Press and hold the shift key and then press the key with the required symbol.
To get space between typed words, press the space bar once and then type the next word.
Creating new lines and spaces between paragraphs
The Enter or return key is used to create new lines and spaces between paragraphs.
Instead of typing directly, some items can be selected from computer screen, for example “print” or “close” button. This can be done using point and draw devices, such as mouse.
Other examples of point and draw devices are joystick, light pea, touch pad or track ball and touch screen.
Mouse is a pointing device used to point a particular place on the screen and to perform one or more actions. It can be used to select menu commands, resize windows, etc. A mouse primarily comprises of three parts: the buttons, the handling area, and the rolling object. By default, the mouse is configured to work for the right hand.
The mouse pointer allows to point on the screen. The pointer changes as shown below
Arrow Shape: This mouse pointer will appear as you move it around the screen
I shape: This mouse pointer will appear as you move it over text.
Pointing finger: The pointer changes to a pointing finger symbol as we bring the mouse pointer over the hyperlink of the web page.
The common mouse actions are as follows
1. Click or left click: It is used to select an item.
2. Double click: It is used to start a program or open a file.
3. Right click: It is used to display a set of commands and available options.
4. Drag and drop: It allows to select and move an item from one location to another.
5. Scroll: We can use scroll key of a mouse to scroll a page up or down.
6. Blocking: Blocking is another way of selecting text. It is used to select text that needs to be edited or formatted.
Typing ergonomics provides the logistic support for efficient and effective typewriting. Some of these
factors included are as given as below.
Sitting posture: While working on computer, sit straight, slightly bending your neck forward. Touch the lower portion of your back to the lower portion of the back rest of the chair. Touch both the feet to the floor.
Position of hands: Put your forearms at level with the keyboard and palms down as shown below. Keep your wrists straight and hang your elbows naturally.
Monitor placement: Do not bend your neck while working on the monitor and keep the upper border of screen at eye level. Keep an approximate distance of about 60–65 cm for 17 inches screen.
Mouse and keyboard placement: Keep the keyboard and mouse together at an approximate distance of 20 cm. Same height of keyboard, mouse and elbows helps the users to work comfortably.
Chair and table placement: Adjust computer chair and table to an optimal height.
Placement of matter to be typed: Place the matter for typing to the left or right side of the keyboard preferably on a Copy Holder which has a sloping surface
Positioning of fingers on the keyboard
In the Home Row Approach, also called Horizontal Approach, all the eight fingers of both the hands rest on Home Keys during the keyboard operation. The thumb of the right hand is used to operate the Space Bar.
Allocation of keys to fingers.
The keyboard learning process starts from the second row (Home Row) followed by the Third Row (Upper Row), First Row (Bottom Row) and the Fourth Row (Number Row).
Place four fingers of each hand on Home Keys as shown below. The remaining two keys ‘g’ and ‘h’ on the second row are operated by the forefingers (Index Finger) of left and right hand, respectively.
Allocation of keys to numeric keypad
The numeric keypad has four columns and five rows. The row which has 4, 5, 6 and is called Home Row. On a numeric keypad, the number 5 is the guide key. It has a small raised tangible mark which serves as a guide for the touch typist.
Successful keyboarding tips
The following points may be kept in mind for successful keyboarding techniques.
- Press the keys with feather touch.
- Rest your fingers on Home row.
- While typing, release the key immediately as soon as you press it.
- Do not look at the keyboard while practicing.
- Press the keys only with the fingers allotted for them.
- Do not take any mental stress while typing.
- Maintain a balance between speed and accuracy.
Introduction to Typing Software: Rapid Typing Tutor
Rapid Typing Tutor is a Free and Open Source Software (FOSS) designed to learn typing skills on the computer.
It is free to use and share with others for free.
Touch typing technique
Touch typing improves typing speed and accuracy. A touch typist never looks at the keyboard. The typist is entirely focused on the text being typed as the fingers type the text reflexively.
Touch typing can be learned by performing special exercises.
Stage one of the process begins with learning the Home Row of the keyboard. This is followed by learning the lower and upper rows, the numbers row, uppercase letters and special symbols.
Stage two involves memorizing frequently used syllables and typing words containing these syllables.
Stage three involves typing actual text to perfect the skills acquired.
The colour indication in Rapid Typing Tutor is as follows:
Green letters denote right inputs.
Yellow letters stand for right inputs exceeding the acceptable timeframe.
Red letters denote wrong inputs within the acceptable timeframe.
Orange letters indicate wrong inputs that also exceed the acceptable timeframe (it’s the worst result).
Calculating the typing speed
The typing speed can be measured with different accuracies. The following table lists the detailed descriptions of typing speed types.
|WPM||the number of words typed in|
a one minute period of time
|WPM = ( Words without errors + Words with|
errors ) / Time spent in minutes
|Net WPM||the WPM without words with|
|Net WPM = WPM – ( Words with errors / Time|
spent in minutes )
|CPM||the number of characters|
typed in a one minute period
|CPM = ( Characters without errors + Characters|
with errors ) / Time spent in minutes
|Net CPM||the CPM without characters|
|Net CPM = CPM – ( Characters with errors /|
Time spent in minutes )
|KPM||the number of keystrokes in a|
one minute period of time
|KPM = (Keystrokes without errors + Keystrokes|
with errors ) / Time spent in minutes
|Net KPM||the KPM without keystrokes|
|Net KPM = KPM – ( Keystrokes with errors /|
Time spent in minutes )
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