Category: Mobile

mobile phonecell phonecellphone, or hand phone. Probably sometimes shortened to simply a cell or just phone, is a portable telephone. It can make and receive 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 phone operator. Which provides access to the public switched telephone network (PSTN). Modern phone services use a cellular network architecture.  Therefore, phones are called cellular telephones or cell phones, in North America.

In addition, to telephony, 2000s-era mobile phones support a variety of other services. Such as text messagingMMSemailInternet access. Short-range wireless communications (infraredBluetooth). Business applications, video games, and digital photography. Mobile phones offering only those capabilities are known as feature phones. Mobile phones which offer greatly advanced computing capabilities are referred to as smartphones.

Certainly, the first handheld cellphone was demonstrated by John F. Mitchell and Martin Cooperof Motorola in 1973. Probably using a handset weighing c. 2 kilograms (4.4 lbs). In addition, in 1979, Nippon Telegraph and Telephone (NTT) launched the world’s first cellular network in Japan. In 1983, the DynaTAC 8000x was the first commercially available handheld mobile phone. From 1983 to 2014, worldwide mobile phone subscriptions grew to over seven billion. Almost enough to provide one for every person on Earth. In first quarter of 2016, the top smartphone developers worldwide were SamsungApple, and Huawei.  And smartphone sales represented 78 percent of total mobile phone sales. Further, for feature phones (or “dumbphones”) as of 2016, the largest were Samsung, Nokia, and Alcatel.
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