Input and Output devices

1. Input devices'

1.1. The mouse can input data and by wireless or optical.

2. Keyboard

2.1. The keyboard is also an input device for typing data and commands.

2.1.1. Sub Idea 1

2.1.2. Sub Idea 2

3. Printers

3.1. Printers are an output device, they print data and images.

4. Speakers

4.1. Speakers are an output device for sound from the computer.