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CSEC IT: Input Devices

In this post, we will cover:

  1. Key input devices, point and draw input devices and source data automation input devices

  2. Advantages and disadvantages of each

  3. Applications of each


Key Input devices

Key input devices are those devices that use an assortment of keys or buttons with preassigned values to send those values to the computer. The user simply presses these keys to send signals into the computer.

A) Keyboard


The keyboard is one of the most commonplace and ubiquitous input devices used today. It is considered to be one of the two primary input devices (other than the mouse) used with the computer due to its essential contribution to the complete computer system. Each key on a keyboard is marked with a particular character, symbol or function. It is used to input text, commands and certain functions into the computer or another similar device.