Parts Of Computer Keyboard JSS1 Business Studies Lesson Note

PARTS OF COMPUTER KEYBOARDING

PARTS OF COMPUTER KEYBOARDING AND THEIR USES

1. Alpha-numeric keypad – it consists of keys for English alphabets 0 – 9 and special characters like +, –, /, x, (), etc.
2. Function Keys – There are twelve (12) function keys labeled F1, F2, F3 – F12. The functions assigned to these keys differ from one software package to another. They are also user, programmable keys.
3. Ender – It is similar to the return key of the typewriter and is used to execute a command or program.
4. Spacebar – It is used to enter a space at the current cursor location.
5. Backspace – This is used to move the cursor from one position to the left and also to delete the character in that position.
6. Delete – This is used to delete the character at the cursor position.
7. Insert – This is used to toggle between insert and overwrite modes during data entry.
8. Shift –  This is used to type capital letters when pressed along with an alphabet key. It is also used to type the special characters located on the top of a key that has two characters on it.
9. Caps lock – This is used to toggle between the capital lock. When ‘on’ it locks the alpha-numeric keypad for capital letters input only.
10. Tab – This is used to move the cursor to the next tab position defined in the document. It is also used to insert indentations into a document.
11. Ctrl – The control key is used in conjunction with other keys to provide additional functionality to the keyboard.
12. Alt –Is always used in combination with other keys to perform specific tasks.
13. ESC – This is used to negate a command. It is also to cancel executing programs.
14. Numeric keypad – This is located on the right side of the keyboard and consists of keys having numbers 0 – 9 and mathematical operators +, –, /, x, () defined them. It is provided to support quick entry for numeric data.
15. Cursor movement keys –  are arrow keys and are used to move the cursor in the direction indicated by the arrow (up, down, left, right).

EVALUATION

1. List 7 parts of a keyboard
2. State 5  good posture of a typist.

Assignment

1. What is a keyboard?
2. What is a typewriter?
3. Describe a computer keyboard
4. What is the correct sitting position of a typist?
5. What is the use of an Alt key?