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Radio waves: These waves are commonly used for long distance communication or sending
messages, information for communication for aircraft or naval communication. The information
is sent in the form of electromagnetic waves.
Short Distance Wireless Media
Short distance wireless communication media includes Wi-Fi, Bluetooth, and satellites.
Wi-Fi: It stands for Wireless Fidelity, which lets you connect to the Internet without any wired
connection from your PC. It is a popular form of wireless connection as it does not require
cables.
It can be used to get connected through a variety of
devices like laptops, digital cameras, smartphones, gaming
consoles, etc. To connect to a Wi-Fi network a hotspot is
required. The hotspot acts as a gateway to the Internet, you
need to connect to hot-spot to be able to connect to the
Internet.
Bluetooth: This wireless technology creates a small wireless
network called Personal Area Network between personal
computers and peripheral devices such as printers, mouse,
keyboards, headphones, etc. It is used to exchange data
over a short distance from fixed or mobile devices.
PURE
FACT Bluetooth was named after the 10th century Danish king, Harald I Bluetooth.
Subject: Global Positioning System
Global Positioning System: The short form of Global Positioning
System is GPS. It is a satellite-based navigation system which
is used to identify the geographical location of an object. It is
made up of a network of 24 satellites placed into orbit by the
U.S. Department of Defense. These are strategically positioned
so that at least four satellites can be seen with a clear line of
sight from anywhere on the globe. It is used for tracking mobiles, cars, etc.
Networking Concepts 17

