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The first use of wireless communication was in 1849 when Heinrich Hertz demonstrated the transmission of electromagnetic waves through space. In 1896, Guglielmo Marconi transmitted signals over long distances using radio waves. The modern-day mobile phone was developed in the 1960s.
A paging system is a communication tool that allows for one-way communication to a large audience. It's a public address system that's used to make announcements, notify, or alert people. Paging systems are still used in various sectors, including healthcare, public agency, retail, school, and hospitality.
A cordless telephone or portable telephone has a portable telephone handset that connects by radio to a base station connected to the public telephone network. The operational range is limited, usually to the same building or within some short distance from the base station.
A cellular telephone system is a mobile phone network that is made up of many signal areas, or cells. These cells overlap to create a large coverage area, allowing users to move between cells without losing connection.
Topics include: Paging System, Cordless Telephone System, & Cellular Telephone Systems.
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