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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. By 2011, it was estimated in Britain that more calls were made using mobile phones than wired devices. [1]
1980: W.C. Black and David A. Hodges develop the silicon-gate CMOS (complementary MOS) pulse-code modulation (PCM) codec-filter chip, [44] which has since been the industry standard for digital telephony, [44] [46] widely used in the public switched telephone network (PSTN) as well as cordless telephones and cell phones. [46] 1981: The world's ...
[44] [45] Between 1971 and 1973, Bell combined MOS technology with touch-tone technology to develop a push-button MOS touch-tone phone called the "Touch-O-Matic" telephone, which could store up to 32 phone numbers. This was made possible by the low cost, low power requirements, small size and high reliability of MOSFETs, over 15,000 of which ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 22 January 2025. 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 ...
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).
This is the list of mobile phone brands sorted by the country from which the brands originate. The number of mobile phone brands peaked to more than 750 in 2017 before declining to nearly 250 brands in 2023. [1] Bold refers to major smartphone brand. [2] [3]
In 2002, only 10% of the world's population used mobile phones and by 2005 that percentage had risen to 46%. [42] By the end of 2009, there were a total of nearly 6 billion mobile and fixed-line telephone subscribers worldwide.
It paved the way for the ones of today by introducing touch screens to phones. "Buxton Collection Sampler" (PDF). CHI 2011. ACM SIGCHI. 2011. p. 6. Archived from the original (PDF) on March 18, 2013 IBM / Bell South Simon Smartphone: First shown in 1993, this was the world's first so-called 'smart phone'.