Input and Output Devices
Input Devices :- The devices which are used to input the data and the programs in the computer are known as “Input Devices“ . or Input device can read data and convert them to a form that a computer can use. Output Device can produce the final product of machine processing into a form usable by humans. It provides man to machine communication. Input device accept the data from the user and convert into the form accepted by computer . Example of input device are: Keyboard, Mouse, Web Cam, Microphone, Scanner, Track ball, Joystick, Digitizer etc. [1] Keyboard :- Keyboard is most common input device is used today. The data and instructions are input by typing on the keyboard. The message typed on the keyboard reaches the memory unit of a computer. It’s connected to a computer via a cable. Apart from alphabet and numeral keys, it has other function keys for performing different functions. Nowadays it has round about 104 keys. [2] Mouse :- ...
