1. INPUT DEVICES

Input devices are used to enter data/instructions or commands in a form that the computer can use. They send the data or commands to the processing unit.

According to the type of data they input, they can be grouped into the following:

1. Text input devices
2. Pointing input Devices
3. Imaging input Devices
4. Gaming input Devices
5. Audio input Devices
6. Biometric input Devices and
7. Other Specialized input device                                                                                                                                                                                                          a. Text input devices

Text is a general word for all characters such as letters, numerical digits, symbols and marks that combine to form words, sentences, paragraphs and so on. There is a variety of devices that help us to input text into a computer. The following are the text input devices commonly used.