Wireless networking is a hot industry segment. Several wireless technologies have been targeted primarily for data transmission. The IEEE 802.11 standards define how wireless LAN should work. They are analogous to their wired counterpart 802.3 Ethernet standard, which defines how wired network should work.
Bluetooth is another standard of wireless networking, which is used to build small networks between peripherals: a form of wireless wires, if you will. Infrared serves the similar purpose of Bluetooth, but is regarded as an older technology.
We will explore each of them in the following sections and walk through their major functions and features.