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Describe the functions of the various keys on the keyboard.

Functions of different keys on the keyboard:

Keyboard is a device with many buttons consisting of letters, numbers, symbols etc. to provide various information or instructions to the computer. Keyboard is used as the most widely used input device. It has some additional buttons besides the required buttons. These additional buttons can be used to perform various commands on the computer. Normally keyboard has 104 number of buttons. These keys are divided into the following six categories, viz


(i) Alphabetic Key

(ii) Numeric Key

(iii) Function Key

(iv) Cursor Key

(v) Special Key

(vi) Command Key


(i) Alphabetic Key: The keys A to Z in the middle of the keyboard are called alphabetic keys. These keys are used to type various characters.

(ii) Numeric Key: The ten keys from 0 to 9 located below the function keys of the keyboard are called numeric keys. Numbers are typed using these keys.

(iii) Function : The keys from F1 to F12 located on the top row of the keyboard are called function keys. These keys are used to execute various commands.

(iv) Cursor Key: The four keys marked Left Arrow (-), Right Arrow (--) Up Arrow (T) Down Arrow (+) on the keyboard are called Cursor Keys. These keys are used to move the cursor to different locations.

(v) Special Key (Special Key): Keyboard HOME. Keys marked END INSERT, ESC, CAPS LOCK etc. are called special keys. The function of these keys is briefly described below--

HOME- This key acts as an auxiliary key to execute commands in various programs. Pressing it moves the cursor to the beginning of the line.

END - Pressing this moves the cursor to the end of the line.

INSERT- INSERT key is used to turn OFF/ON Type Over mode in MS Word program.

The full pronunciation of ESC is ESCAPE, which means to escape. This key is used to cancel a command.

CAPS LOCK - When typing text in normal mode, the text is lowercase. CAPS LOCK key should be ON if you want to make the text in capital letters.

TAB- The TAB key is used to move the cursor quickly. The TAB key is used to move the cursor from one command to another in the command menu in some programs.

BACKSPACE - Pressing this key once deletes one character to the left of the cursor in MS Word.

DELETE - Pressing this key deletes the character to the right of the cursor in MS Word.

SPACE BAR- The elongated key located at the bottom line of the keyboard is called the SPACE BAR key. Press this key each time to create a space between words.


(vi) Command Key (Command Key): Alt (Alter), Sh (shift). Ctrl (Control) key is called command key. Various commands are executed with the help of such keys.

Ctrl, Alt, Shift These keys are used to give special commands by combining these keys with each other or with other keys on the keyboard.


ENTER- The most widely used key on the keyboard is the ENTER key. The computer needs to know by which command. If you do not press the ENTER key after typing any command, the command will not be executed.


In addition to the above keys, there is a part like a calculator on the right side of the keyboard, through which mathematical operations can be recorded very easily. That part of the keyboard is called Numeric Key pad.


Below is a brief introduction to the various keys on the keyboard:

(i) Character Key: The keys that appear from A to Z on the keyboard are called character keys. These keys contain uppercase and lowercase letters. Typing is done with the help of these keys, such as - Computer is an important thing.

(ii) In Numeric Keypad, the section is located on the right side of the keyboard like a calculator. This section can only be used to work with numbers. Pressing the key labeled Num Lock once turns the key patch "On". If the Num Lock key is pressed again, the keypad turns off. If the number is off, the following commands will work.

(iii) Functional Key 1 The keys from F1 to F12 on the top row of the keyboard are called Functional Keys. These keys can handle one function. For example, pressing FI activates the help option.

(iv) Tab Key : Pressing this key will make the cursor jump a few cells. A default tab value of 0.5 inches is usually set. Pressing the tab key once will move the cursor 0.5 inches at a time. Caps Lock Key 8 If you press the key once, the lamp on the top of the keyboard will light up on the Caps Lock text, that is, if you type anything while the Caps Lock option is On, it will be typed in capital letters. Pressing Caps Lock button once again will turn Caps Lock Off: When writing in Off condition, the text will be English lowercase.

(v) Escape Key : In many application packages the Esc key can be used to cancel the previous command.

(vi) Shift Key : In case of keys that work as two keys together, pressing the shift key will work the upper one and pressing the key without the shift key will work the lower one. For example, pressing the Shift key and typing the key of any letter will be English uppercase, that is, English will be capital letters. If you release the Shift key and type again, it will be lowercase.

(vii) Control Key : Ctrl Key is called Control Key. This key is used to issue commands to various application packages.

(viii) Alter Key : Alt Key is called as Alter Key. Pressing this key selects menus in different packages.

(ix) Enter key: Enter key must be used after writing the command to give any command to the computer. It can be used to start a new line while writing.

(x) Backspace key: This key is used to move the cursor backwards. In this case, if there is text, when the cursor moves backwards, it also deletes the text. When a line ends, the cursor moves to the line above it.

(xi) Arrow keys: These keys are called cursor movement keys. These keys include left key, right key, up key, down key. These keys can be used to move the cursor left, right, up and down.

(xii) Page Up, Page Down, End, Home Keys: These keys are used in various application packages.

(xiii) Insert key: After entering various application packages and pressing this key once, Over appears below the screen. If you write with the cursor under a text while it is over, the previous text will be deleted and a new text will be created. This key is used for pasting in DOS-based programs.

(xiv) Del key : The Del key is called the Delete key. Pressing this key while selecting a text object deletes it. Pressing this key with the cursor anywhere will delete the character to the right of the cursor.

(xvi) Pause key : But there are some messages, which display on the monitor for a short time. In such cases the messages remain on the monitor for such a short time that they cannot be read under any circumstances. In this case, once the Pause key is pressed, the messages remain permanent. Pressing any button afterwards reverts the messages to the previous state.

(xvii) Space Bar : There is a long key below the keyboard. This is more needed in the workplace. For example, if you want to create a space between writing, you have to use this key.

(xviii) Print screen key: When this key is pressed, the image visible on the monitor is stored in the memory as an image. It can then be pasted into any graphics program or Word; It can also be printed on paper if necessary.

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