Editing Consumer electronics (section)

===Mobile phone industry===

[[File:Mobile_Phone_Evolution_1992_-_2014.jpg|right|thumb|This picture illustrates how the mobile phone industry evolved to what we see today as modern [[smartphones]].]]
A [[mobile phone]], cellular phone, cell phone, cellphone, handphone, or hand phone, sometimes shortened to simply mobile, cell or just phone, is a portable [[telephone]] that can make and receive [[telephone call|calls]] over a [[radio frequency]] link while the user is moving within a telephone service area. The radio frequency link establishes a connection to the switching systems of a [[mobile phone operator]], which provides access to the [[public switched telephone network]] (PSTN). Modern mobile telephone services use a [[cellular network]] architecture and, therefore, mobile telephones are called ''cellular telephones'' or ''cell phones'' in North America. In addition to [[telephony]], digital mobile phones ([[2G]]) support a variety of other [[GSM services|services]], such as [[text messaging]], [[Multimedia Messaging Service|MMS]], [[email]], [[Internet access]], short-range wireless communications ([[Infrared Data Association|infrared]], [[Bluetooth]]), business applications, [[video game]]s and [[digital photography]]. Mobile phones offering only those capabilities are known as [[feature phone]]s; mobile phones which offer greatly advanced computing capabilities are referred to as [[smartphone]]s.<ref name="Srivastava">{{cite book |last1=Srivastava |first1=Viranjay M. |last2=Singh |first2=Ghanshyam |title=MOSFET Technologies for Double-Pole Four-Throw Radio-Frequency Switch |date=2013 |publisher=[[Springer Science & Business Media]] |isbn=9783319011653 |page=1 |url=https://books.google.com/books?id=fkO9BAAAQBAJ&pg=PA1 |access-date=1 October 2021 |archive-date=30 June 2023 |archive-url=https://web.archive.org/web/20230630125858/https://books.google.com/books?id=fkO9BAAAQBAJ&pg=PA1 |url-status=live }}</ref>

A [[smartphone]] is a [[portable device]] that combines [[mobile telephone]] and [[Mobile computing|computing]] functions into one unit. They are distinguished from [[feature phone]]s by their stronger hardware capabilities and extensive [[mobile operating system]]s, which facilitate wider [[application software|software]], [[internet]] (including [[web navigation]] over [[mobile broadband]]), and [[multimedia]] functionality (including music, video, [[camera phone|camera]]s, and [[mobile game|gaming]]), alongside core phone functions such as [[voice call]]s and [[text messaging]]. Smartphones typically contain a number of [[MOSFET]] [[integrated circuit]] (IC) chips, include various [[sensor]]s that can be leveraged by pre-included and third-party software (such as a [[magnetometer]], [[proximity sensor]]s, [[barometer]], [[gyroscope]], [[accelerometer]] and [[#Sensors|more]]), and support [[wireless]] communications protocols (such as [[Bluetooth]], [[Wi-Fi]], or [[satellite navigation]]).

====By country====
{{main|List of telecom companies in India|Mobile phone industry in Japan|Mobile phone industry in Russia|l1 = Mobile phone industry in India|Mobile phone industry in South Korea|Page 4 = }}