1. Wireless is short for wireless connections.
2. Wireless connections include everything from two-way radios, cell phones, personal digital assistants (PDAs), and wireless networking to other things we might not associate with the same idea, such as garage door openers, wireless computer mice, keyboards, wireless TV headsets and even satellite television.
3. Wireless connections use a form of energy, such as radio waves, infrared light, laser light, visible light, sound waves, etc. to transfer information over both short and long distances.
4. The most common use of wireless connections is to connect laptop users from location to location, although the use of cell phones, via satellite is increasing.
5. “Wireless” must not be confused with “cordless”.
6. In 1880, Alexander Graham Bell and Charles Sumner Tainter invented and patented the photophone, a telephone that conducted audio conversations wirelessly over modulated light beams (which are narrow projections of electromagnetic waves). The was the world’s first wireless phone conversation.
7. The theory of electromagnetic waves derived from the research of James Clerk Maxwell and Michael Faraday.
8. It was Hertz demonstrated that electromagnetic waves could be transmitted and caused to travel through space at straight lines and that they were able to be received by an experimental apparatus.
9. Guglielmo Marconi and Karl Ferdinand Braun were awarded the 1909 Nobel Prize in Physics for their contribution to wireless telegraphy.
10. In order to have a wireless connection, there needs to be device for receiving and sending the signal. Three kinds of wireless connections are Bluetooth, infrared, and WiFi (wireless fidelity).
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