Bluetooth: A technology for short-range wireless communication. It connects devices like keyboards, mice, and printers. Many motherboards have Bluetooth built-in, or it can be included in a wireless network card. If your computer doesn’t have Bluetooth, you can buy a USB adapter, also called a dongle.

Other lessons are:
- What is the motherboard in a computer?
- What is a Processor/CPU in a computer?
- What is a RAM (Random Access Memory)
- What is a Hard Drive in a computer?
- What is a Power Supply Unit in a computer?
- What is a Expension Cards in a computer?
- What is a Video Card in a computer?
- What is a Sound Card in a computer?
- What is a Network Card in a computer?