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A mobile phone or cell phone [a] is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone ( landline phone ). The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which ...
Nikola Tesla laid the theoretical foundation for wireless communication in 1890. Guglielmo Marconi, known as the father of radio, first transmitted wireless signals two miles away in 1894. Mobile technology gave human society great change. The use of mobile technology in government departments can also be traced back to World War I.
People using their mobile phones individually. Problematic smartphone use is psychological or behavioral dependence on cell phones. It is closely related to other forms of digital media overuse such as social media addiction or internet addiction disorder . Commonly known as " smartphone addiction ", the term "problematic smartphone use" was ...
v. t. e. A cellular network or mobile network is a telecommunications network where the link to and from end nodes is wireless and the network is distributed over land areas called cells, each served by at least one fixed-location transceiver (typically three cell sites or base transceiver stations ). These base stations provide the cell with ...
Barr v. American Assn. of Political Consultants, Inc., No. 19-631, 591 U.S. ___ (2020) The Telephone Consumer Protection Act of 1991 ( TCPA) was passed by the United States Congress in 1991 and signed into law by President George H. W. Bush as Public Law 102-243. It amended the Communications Act of 1934. The TCPA is codified as 47 U.S.C. ยง 227.
Information and communications technology ( ICT) is an extensional term for information technology (IT) that stresses the role of unified communications [1] and the integration of telecommunications ( telephone lines and wireless signals) and computers, as well as necessary enterprise software, middleware, storage and audiovisual, that enable ...
Wireless network technologies. In telecommunications, 5G is the fifth-generation technology standard for cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the successor to 4G technology that provides connectivity to most current mobile phones. Like its predecessors, 5G networks are cellular networks, in ...
A phone cage used for keeping students' phones away from them during school hours. The use of mobile phones in schools has become a controversial topic debated by students, parents, teachers and authorities. People who support the use of mobile phones believe that these phones are useful for safety, allowing children to communicate with their ...