Fundamentals of computer device input output devices

Computer description hardware software device

1. INPUT DEVICES : Input device enables the user to send data, information, or control signals to a computer . The central processing Unit (CPU) of a computer receives the input and processing it to output .

2. KEYBOARD: Keyboard is the most common and most important input device. Its look like type writer. It has got various keys, which are used to data and commands to the computer .

3. MOUSE : Its used to give command and sometimes input to the computer. It’s a small box with a round ball at the bottom and more than one button one the top

4. SCANNER : Scanners read and interpret information on printed matter. The information is converted to a format for storage.

5. LIGHT PEN: Pointing input device having the size and shape of regular pen. Its used to select a displayed menu item or draw pictures on monitor screen. Primarily used for graphics works. Used to identify the specific location