Mobile device

mobile deviceshandheldmobilehandheld devicehandheld computermobile platformhandheld deviceshandheldshand-heldhand-held computer
A mobile device (or handheld computer) is a computing device small enough to hold and operate in the hand.wikipedia
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Internet

onlinethe Internetweb
Many such devices can connect to the Internet and interconnect with other devices such as car entertainment systems or headsets via Wi-Fi, Bluetooth, cellular networks or near field communication (NFC). Some mobile devices can be used as mobile Internet devices to access the Internet while moving but they do not need to do this and many phone functions or applications are still operational even while disconnected to the Internet.
The linking of commercial networks and enterprises by the early 1990s marked the beginning of the transition to the modern Internet, and generated a sustained exponential growth as generations of institutional, personal, and mobile computers were connected to the network.

Video game

video gamesgamevideogame
Integrated cameras, digital media players, the ability to place and receive telephone calls, video games, and Global Positioning System (GPS) capabilities are common.
These include dedicated devices such as video game consoles, as well as general-purpose computers like a laptop, desktop or handheld computing devices.

Mobile operating system

mobile platformsmobilemobile operating systems
Mobile devices may run mobile operating systems that allow third-party apps specialized for said capabilities to be installed and run.
A mobile operating system (or mobile OS) is an operating system for phones, tablets, smartwatches, or other mobile devices.

Mobile app

appmobile applicationapps
Mobile devices may run mobile operating systems that allow third-party apps specialized for said capabilities to be installed and run.
A mobile app or mobile application is a computer program or software application designed to run on a mobile device such as a phone/tablet or watch.

Tablet computer

tabletstablettablet PC
Early smartphones were joined in the late 2000s by larger, but otherwise essentially the same, tablets. Phones/tablets and personal digital assistants may provide much of the functionality of a laptop/desktop computer but more conveniently, in addition to exclusive features. Handheld computers are available in a variety of form factors, including smartphones on the low end, handheld PDAs, Ultra-Mobile PCs and Tablet PCs (Palm OS, WebOS).
A tablet computer, commonly shortened to tablet, is a mobile device, typically with a mobile operating system and LCD touchscreen display processing circuitry, and a rechargeable battery in a single thin, flat package.

Touchscreen

capacitive touchscreentouch screenscreen
Typically, any handheld computer device will have an LCD flatscreen interface, providing a touchscreen interface with digital buttons and keyboard or physical buttons along with a physical keyboard.
Those for mobile devices are now being produced with 'in-cell' technology, such as in Samsung's Super AMOLED screens, that eliminates a layer by building the capacitors inside the display itself.

HTC

HTC CorporationHTC CorportionHigh Tech Computer
Major global manufacturers of mobile devices include Apple, Samsung, Sony, Google, HTC, LG, Motorola Mobility and Nokia.
Initially a manufacturer of notebook computers, HTC began designing some of the world's first touch and wireless hand-held devices in 1998.

Mobile Internet device

MIDMIDsEvans Peak
Some mobile devices can be used as mobile Internet devices to access the Internet while moving but they do not need to do this and many phone functions or applications are still operational even while disconnected to the Internet.
A mobile Internet device (MID) is a multimedia-capable mobile device providing wireless Internet access.

Mobile computing

mobilemobile computermobile computers
Mobile computers
Hardware includes mobile devices or device components.

Graphing calculator

graphing calculatorsGraphinggraphical calculator
Graphing calculators
A graphing calculator (also graphics / graphic display calculator) is a handheld computer that is capable of plotting graphs, solving simultaneous equations, and performing other tasks with variables.

Digital camera

digital camerasdigitalcamera
Digital still cameras (DSC)
Most cameras produced today are digital, and while there are still dedicated digital cameras, many more are now incorporated into devices ranging from mobile devices to vehicles.

Smartphone

smartphonessmart phonesmart phones
Early smartphones were joined in the late 2000s by larger, but otherwise essentially the same, tablets. Phones/tablets and personal digital assistants may provide much of the functionality of a laptop/desktop computer but more conveniently, in addition to exclusive features. Handheld computers are available in a variety of form factors, including smartphones on the low end, handheld PDAs, Ultra-Mobile PCs and Tablet PCs (Palm OS, WebOS).
A mobile operating system (or mobile OS) is an operating system for phones, tablets, smartwatches, or other mobile devices.

Personal digital assistant

PDAPDAspersonal digital assistants
Phones/tablets and personal digital assistants may provide much of the functionality of a laptop/desktop computer but more conveniently, in addition to exclusive features. Handheld computers are available in a variety of form factors, including smartphones on the low end, handheld PDAs, Ultra-Mobile PCs and Tablet PCs (Palm OS, WebOS).
A personal digital assistant (PDA), also known as a handheld PC, is a variety mobile device which functions as a personal information manager.

Rugged computer

ruggedizedruggedruggedization
Handheld devices have become ruggedized for use in mobile field management.
However, one research study found that in environments where rugged computers are commonly used, total cost of ownership was 36 percent lower for rugged notebooks and 33 percent less for handhelds and PDAs, compared to conventional non-rugged versions.

Mobile interaction

Mobile interaction
Mobile devices are a pervasive part of people's everyday lives.

Mobile collaboration

In 2009, developments in mobile collaboration systems enabled the use of handheld devices that combine video, audio and on-screen drawing capabilities to enable multi-party conferencing in real-time, independent of location.
Where traditional video conferencing has been limited to boardrooms, offices, and lecture theatres, recent technological advancements have extended the capabilities of video conferencing for use with discreet, hand-held mobile devices, permitting true mobile collaborative possibilities.

Portable communications device

portableportable devicesradio
Portable communications device
A portable communications device is a hand-held or wearable device.

Smart device

smart devicesconnected devicessmart
Also see smart device.
Mobile device

Calculator

pocket calculatorcalculatorselectronic calculator
Calculators
At the turn of the millennium, the line between a graphing calculator and a handheld computer was not always clear, as some very advanced calculators such as the TI-89, the Voyage 200 and HP-49G could differentiate and integrate functions, solve differential equations, run word processing and PIM software, and connect by wire or IR to other calculators/computers.

WebOS

Palm webOSHP webOSApp Catalog
Handheld computers are available in a variety of form factors, including smartphones on the low end, handheld PDAs, Ultra-Mobile PCs and Tablet PCs (Palm OS, WebOS).
Mobile platform

Liquid-crystal display

LCDliquid crystal displayliquid crystal displays
Typically, any handheld computer device will have an LCD flatscreen interface, providing a touchscreen interface with digital buttons and keyboard or physical buttons along with a physical keyboard.

Headset (audio)

headsetheadsetswireless headset
Many such devices can connect to the Internet and interconnect with other devices such as car entertainment systems or headsets via Wi-Fi, Bluetooth, cellular networks or near field communication (NFC).

Wi-Fi

WiFiwireless internetwireless
Many such devices can connect to the Internet and interconnect with other devices such as car entertainment systems or headsets via Wi-Fi, Bluetooth, cellular networks or near field communication (NFC).

Bluetooth

Bluetooth 2.1 + EDR4.0Bluetooth 2.1+EDR
Many such devices can connect to the Internet and interconnect with other devices such as car entertainment systems or headsets via Wi-Fi, Bluetooth, cellular networks or near field communication (NFC).

Near-field communication

NFCnear field communicationnear-field communications
Many such devices can connect to the Internet and interconnect with other devices such as car entertainment systems or headsets via Wi-Fi, Bluetooth, cellular networks or near field communication (NFC).