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This is an accepted version of this page This is the latest accepted revision, reviewed on 21 December 2024. Technical and legal issues surrounding the development of the modern telephone For broader coverage of this topic, see History of the telephone. Replica of Antonio Meucci's telettrofono Reis's telephone The invention of the telephone was the culmination of work done by more than one ...
Alexander Graham Bell (/ ˈ ɡ r eɪ. ə m /, born Alexander Bell; March 3, 1847 – August 2, 1922) [4] was a Scottish-born [N 1] Canadian-American inventor, scientist, and engineer who is credited with patenting the first practical telephone.
Johann Philipp Reis. Johann Philipp Reis (German:; 7 January 1834 – 14 January 1874) was a self-taught German scientist and inventor. In 1861, he constructed the first make-and-break telephone, today called the Reis telephone.
A man talks on his mobile phone while standing near a conventional telephone box, which stands empty. Enabling technology for mobile phones was first developed in the 1940s but it was not until the mid-1980s that they became widely available.
The Reis telephone was an invention named after Philipp Reis of a telephone-like device he constructed.Reis's first successful work is dated to October 1861. It was the first device to transmit a voice via electronic signals and for that the first modern telephone.
Two decades of evolution of mobile phones, from a 1992 Motorola DynaTAC 8000X to the 2014 iPhone 6 Plus. A mobile phone, or cell phone, [a] is a portable telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones (landline phones).
The Telxon PTC-710 is a 16-bit mobile computer PTC-710 with MP 830-42 microprinter 42-column version.. Portability: Devices/nodes connected within the mobile computing system should facilitate mobility.
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 (such as a base station).