Mobile phone

cell phonemobile phonesmobilecell phonescellular phonecellphonemobile telephonecellular telephonemobile telephonycellular phones
A mobile phone, cell phone, cellphone, or hand phone, sometimes shortened to simply mobile, cell or just phone, 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.wikipedia
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Cellular network

cellularmobile networkcellular networks
Modern mobile telephone services use a cellular network architecture, and, therefore, mobile telephones are called cellular telephones or cell phones, in North America. The development of metal-oxide-semiconductor (MOS) large-scale integration (LSI) technology, information theory and cellular networking led to the development of affordable mobile communications.
This enables numerous portable transceivers (e.g., mobile phones, tablets and laptops equipped with mobile broadband modems, pagers, etc.) to communicate with each other and with fixed transceivers and telephones anywhere in the network, via base stations, even if some of the transceivers are moving through more than one cell during transmission.

GSM services

servicesmobile data serviceAdvice of Charge
In addition to telephony, 2000s-era mobile phones support a variety of other services, such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, video games, and digital photography.
Global System for Mobile Communications (GSM) services are a standard collection of applications and features available to mobile phone subscribers all over the world.

Smartphone

smartphonessmart phonesmart phones
Mobile phones offering only those capabilities are known as feature phones; mobile phones which offer greatly advanced computing capabilities are referred to as smartphones. In first quarter of 2016, the top smartphone developers worldwide were Samsung, Apple, and Huawei, and smartphone sales represented 78 percent of total mobile phone sales.
Smartphones are a class of mobile phones and of multi-purpose mobile computing devices.

Telephone

phonetelephonesLocal Telephone Service
A mobile phone, cell phone, cellphone, or hand phone, sometimes shortened to simply mobile, cell or just phone, 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.
Hand-held mobile phones were introduced for personal service starting in 1973.

Feature phone

feature phonesfeaturephonecell phones
Mobile phones offering only those capabilities are known as feature phones; mobile phones which offer greatly advanced computing capabilities are referred to as smartphones. For feature phones (slang: “dumbphones”), the largest were Samsung, Nokia, and Alcatel.
A feature phone is a mobile phone that retains the form factor of earlier-generation phones, with button-based input and a small display.

Multimedia Messaging Service

MMSmultimedia messagingvideo messaging
In addition to telephony, 2000s-era mobile phones support a variety of other services, such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, video games, and digital photography.
Multimedia Messaging Service (MMS) is a standard way to send messages that include multimedia content to and from a mobile phone over a cellular network.

HMD Global

NokiaHMDHMD Global oy
For feature phones (slang: “dumbphones”), the largest were Samsung, Nokia, and Alcatel.
HMD Global Oy, branded as HMD, is a Finnish mobile phone company, made up of the mobile phone business that Nokia had sold to Microsoft in 2014, then bought back in 2016.

Motorola DynaTAC

DynaTAC 8000XDynaTACDynaTAC 8000 Series
In 1983, the DynaTAC 8000x was the first commercially available handheld mobile phone.
DynaTAC is a series of cellular telephones manufactured by Motorola, Inc. from 1983 to 1994.

Motorola Mobility

MotorolaMotorola Mobile DevicesMotorola Israel
The first handheld mobile phone was demonstrated by John F. Mitchell and Martin Cooper of Motorola in 1973, using a handset weighing c. 2 kilograms (4.4 lbs).
Motorola Mobility was formed on January 4, 2011, after a split of Motorola Inc. into two separate companies, with Motorola Mobility assuming the company's consumer-oriented product lines (including its mobile phone business, as well as its cable modems and pay television set-top boxes), and Motorola Solutions assuming the company's enterprise-oriented product lines.

Public switched telephone network

PSTNpublic telephone networktelephone network
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).
Originally a network of fixed-line analog telephone systems, the PSTN is now almost entirely digital in its core network and includes mobile and other networks, as well as fixed telephones.

John Francis Mitchell

John F. Mitchell
The first handheld mobile phone was demonstrated by John F. Mitchell and Martin Cooper of Motorola in 1973, using a handset weighing c. 2 kilograms (4.4 lbs).
Mitchell led the pioneering development and implementation of Motorola's mobile phone technology producing the first portable transistorized pager and cell phone.

Mobile telephony

mobile communicationmobile telecommunicationsmobile communications
The advances in mobile telephony have been traced in successive "generations", starting with the early zeroth-generation (0G) services, such as Bell System's Mobile Telephone Service and its successor, the Improved Mobile Telephone Service. The development of metal-oxide-semiconductor (MOS) large-scale integration (LSI) technology, information theory and cellular networking led to the development of affordable mobile communications.
Mobile telephony is the provision of telephone services to phones which may move around freely rather than stay fixed in one location.

Martin Cooper (inventor)

Martin CooperMarty CooperCooper
The first handheld mobile phone was demonstrated by John F. Mitchell and Martin Cooper of Motorola in 1973, using a handset weighing c. 2 kilograms (4.4 lbs).
He is considered the "father of the (handheld) cell phone" and is also cited as the first person in history to make a handheld cellular phone call in public.

Mobile radio telephone

0G0G mobilemanual mobile telephone system
The advances in mobile telephony have been traced in successive "generations", starting with the early zeroth-generation (0G) services, such as Bell System's Mobile Telephone Service and its successor, the Improved Mobile Telephone Service.
Mobile radio telephone systems were telephone systems of wireless type that preceded the modern cellular mobile form of telephony technology.

Information theory

information-theoreticinformation theoristinformation
The development of metal-oxide-semiconductor (MOS) large-scale integration (LSI) technology, information theory and cellular networking led to the development of affordable mobile communications.
Its impact has been crucial to the success of the Voyager missions to deep space, the invention of the compact disc, the feasibility of mobile phones, the development of the Internet, the study of linguistics and of human perception, the understanding of black holes, and numerous other fields.

Wireless

wireless communicationwireless communicationswireless internet
Digital cellular networks appeared in the 1990s, enabled by the wide adoption of MOSFET-based RF power amplifiers (power MOSFET and LDMOS) and RF circuits (RF CMOS), leading to the introduction of digital signal processing in wireless communications.
It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking.

Samsung Electronics

SamsungSamsung Smart TVSamsung Semiconductor
In first quarter of 2016, the top smartphone developers worldwide were Samsung, Apple, and Huawei, and smartphone sales represented 78 percent of total mobile phone sales.
In 2007, Samsung Electronics became the world's second-largest mobile-phone maker, overtaking Motorola for the first time.

Internet access

broadband internetbroadband Internet accessbroadband
In addition to telephony, 2000s-era mobile phones support a variety of other services, such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, video games, and digital photography.
Additionally, Mobile broadband access allows smart phones and other digital devices to connect to the Internet from any location from which a mobile phone call can be made, subject to the capabilities of that mobile network.

Digital photography

digital photodigitaldigital photograph
In addition to telephony, 2000s-era mobile phones support a variety of other services, such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, video games, and digital photography.
The first cell phones with built-in digital cameras were produced in 2000 by Sharp and Samsung.

Radio-frequency engineering

radio electronicsRF circuitRF engineering
Digital cellular networks appeared in the 1990s, enabled by the wide adoption of MOSFET-based RF power amplifiers (power MOSFET and LDMOS) and RF circuits (RF CMOS), leading to the introduction of digital signal processing in wireless communications.

Apple Inc.

AppleApple ComputerApple Inc
In first quarter of 2016, the top smartphone developers worldwide were Samsung, Apple, and Huawei, and smartphone sales represented 78 percent of total mobile phone sales.
Apple would achieve widespread success with its iPhone, iPod Touch, and iPad products, which introduced innovations in mobile phones, portable music players, and personal computers respectively.

3GPP

3rd Generation Partnership ProjectThird Generation Partnership Project (3GPP).3gpp
The term 5G is not officially used in any specification or official document yet made public by telecommunication companies or standardization bodies such as 3GPP, WiMAX Forum or ITU-R.
The project was established in December 1998 with the goal of developing a specification for a 3G mobile phone system based on the 2G GSM system, within the scope of the International Telecommunication Union's International Mobile Telecommunications-2000.

Mobile operating system

mobile platformsmobile OSmobile
By contrast, smartphones generally use a mobile operating system that often shares common traits across devices.
Mobile operating system milestones mirror the development of mobile phones, PDAs, and smartphones:

Telephony

digital telephonytelephonedigital
In addition to telephony, 2000s-era mobile phones support a variety of other services, such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, video games, and digital photography.
By the 1990s, telecommunication networks such as the public switched telephone network (PSTN) had been largely digitized with very-large-scale integration (VLSI) CMOS PCM codec-filters, widely used in electronic switching systems for telephone exchanges, private branch exchanges (PBX) and key telephone systems (KTS); user-end modems; data transmission applications such as digital loop carriers, pair gain multiplexers, telephone loop extenders, integrated services digital network (ISDN) terminals, digital cordless telephones and digital cell phones; and applications such as speech recognition equipment, voice data storage, voice mail and digital tapeless answering machines.

Electric battery

batterybatteriesBattery (electricity)
A battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, mobile phones, and electric cars.