by 
The Curious Bag
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If you use a cell phone or a laptop computer on a regular basis, you have probably heard of Bluetooth. It has many things in common with another form of wireless technology, Wi-Fi, but a few key differences
Basics
Bluetooth is a wireless method for sending and receiving information for a device such as a keyboard, mouse or cell phone headset.
Technology
Bluetooth transfer speeds are not as fast as Wi-Fi, but it uses relatively little electricity to send and receive information. Bluetooth generally has a shorter range of about 30 feet.
Speeds
Basic Bluetooth can theoretically transmit at up to 1 megabit per second, or 125 kilobytes (KB) per second. Bluetooth 3.0 HS (high speed) has a theoretical speed of up to 24 megabits per second.
Support
Windows users must have at least Windows XP SP2 (Service Pack 2). Mac users must have at least operating system (OS) X 10.2. Linux users should have at least kernel 2.4.6 for built-in support.
Availability
Many laptop computers come with a Bluetooth adapter. You can also buy one for a laptop or desktop. You need only one adapter to connect multiple Bluetooth devices.
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