What is peripheral Devices's

 Peripheral Devices's are hardware items that are connected internally or externally connected to a computer.

    Externally connected device may include printer, scanner, keyboard, mouse, tape device, microphone and external modem they can be internal such as CD- Rom or internal modem etc.

    Today we have wide range of fast and interactive input devices they are mention below:

The keyboard:

    The keyboard is the most commonly used and most versatile of all input devices. 

keyboard devices are online devices and are used from entering data directly in to a computer. The keyboard layout is similar to that of a typewriter with some additional keys. whenever a key is pressed the electrical circuits just below the keys translate the message from the key into equivalent binary codes.