Keyboard

Keyboard is one of the primary input devices used along with a computer. It is used to enter textual data into a computer. The group of keys for letters, numbers and special characters are called the character keys.

All keyboards have the following parts:

Typing area:- It hold all alphabetic characters such as letters, special characters and numbers. 

This is area you used mostly when you work on word processing tool.

Function keys:-  The function keys are located at the top of the keyboard and are usually grouped into four. There are 12 function keys starting from F1 through F12. These keys are used for special purpose and most programmers use these keys to perform specific tasks.

Numeric keypad:- Numeric keypad is a part of computer keyboard usually it is located at right side of a keyboard. Usually,it is located at the right side of a keyboard. It is arranged like a standard calculator to be used to enter numerical data.

Coursor and monitor controls:-- The keys are found between typing keypad and the numeric keypad. It has two groups of keys, arranged at the top and the bottom. 

1. Insert key Switches between insert and overtype modes.

2. Home keys bring you back at the beginning of a line.

3. Page up and Page down keys help you move to one page or screen up or down. 

4. Delete key erases the text or page.

5. The end key takes you at end of a line.

6. The arrow keys are independent directional keys, which let you move the cursor left, right up and down.