Input devices

INTRODUCTION 

Input Devices as well as output devices are a neccessity in order to ensure that data is entered into a computer to be processed and the results output. Such data and information
need to be stored to eliminate re-entry and/or reprocessing.

Input Devices
An input device is a peripheral which accepts data and sends it to the CPU. Data presented to an input device has to be in the right form for the device, e.g. a bar-code reader will only read bar-codes. The input device converts the data into the computer's own internal code before sending it to the CPU.