COMPUTER Class – I Chapter-6 Part 1 COMPUTER KEYBOARD

A pencil or a pen is needed to write in a notebook, but we cannot use a pencil or pen for writing on a computer. You have to use the keyboard to write/enter the information and instruction into a computer.

It looks like a typewriter’s keyboard. It has many small button on it. These buttons are called keys. Whatever we type on the keyboard appears on the monitor at the cursor position. Cursor is a small blinking line on the monitor.

There are usually 104 keys on the keyboard. There are different types of keys to perform different tasks. The different types of keys are as follows:

❖ Alphabet Keys ❖ Number Keys ❖ Function Keys ❖ Special Keys ALPHABET KEYS

These keys are used for typing letters and words. The letters A to Z are written on these keys. The alphabet keys resemble the keys of a typewriter. Due to its first row of alphabet (Q,W,E,R,T,Y), it is called a QWERTY keyboard/keypad. NUMBER KEYS These are keys with numbers written on them. These keys are used to type numbers. One set of number keys are placed above the alphabet keys and another set is on the right side of the keyboard.(0-9) Numeric keypad can be used only when the NUM LOCK is ON. EXERCISES 1. Fill in the blanks: a. Small buttons on the keyboard are called ------. b. There are usually------keys on the keyboard. c. Keyboard is used to enter ------and ------into the computer. d. ------key is used to move to the next line while typing. e. ------is used to give space between two words. 2. Choose the correct answers: a. It is used to type special symbols written on the upper side of the numeric keys and some other keys: i. Special Key ii. Shift Key iii. Symbol Key b. It erases letter to the left of the cursor: i. Erase Key ii. Delete Key iii. Backspace Key c. Number of keys usually available on keyboard: i. 100 ii. 104 iii. 105 d. Longest key of the keyboard: i. Space Bar ii. Caps Lock Key iii. Alt Key e. It is used to write in capital letter: i. Capital Key ii. Letter Key iii. Caps Lock Key Answers

1. a) Keys b) 104 c) information, instruction d) Enter e) Space bar 2. a) Shift key b) Backspace key c) 104 d) Space Bar e) Caps Lock Key