Dispositivo móvel

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Mobile devices are dynamic tools that offer a broad spectrum of functionalities and applications across various industries. Defined by their portability, these devices range in size from pocket-friendly gadgets to larger equipment. Their physical aspects, including dimension and weight, allow for easy attachment to different host devices and mobility across diverse settings. Despite their portability, wireless connectivity is not a prerequisite. Mobile devices can access networks through both wired and wireless connections, and some even operate without internet[1] connectivity. They are integral in numerous industries, providing solutions for field management, real-time conferencing, asset tracking, and more. However, their application in sectors such as gambling and adult entertainment has prompted regulatory scrutiny. Additionally, they are increasingly used in military operations for training and educational purposes.

Definições de termos
1. internet. A Internet é um sistema global de redes informáticas interligadas que utilizam protocolos de comunicação normalizados, principalmente o TCP/IP, para ligar dispositivos em todo o mundo. Com origem no termo "internetted" utilizado em 1849, o termo "Internet" foi mais tarde utilizado pelo Departamento de Guerra dos EUA em 1945. O seu desenvolvimento começou com cientistas informáticos que criaram sistemas de partilha de tempo na década de 1960 e progrediu com a criação da ARPANET em 1969. A Internet é autónoma, sem uma autoridade central, e os seus principais espaços de nomes são administrados pela Internet Corporation for Assigned Names and Numbers (ICANN). Transformou significativamente os meios de comunicação tradicionais e tem crescido exponencialmente ao longo dos anos, com os utilizadores da Internet a aumentarem anualmente de 20% para 50%. Em 2019, mais de metade da população mundial utilizou a Internet. O conjunto de protocolos da Internet, que inclui o TCP/IP e quatro camadas conceptuais, orienta os pacotes da Internet para os seus destinos. Serviços essenciais como o correio eletrónico e a telefonia via Internet funcionam na Internet. A World Wide Web, uma coleção global de documentos interligados, é uma componente essencial da Internet.
Dispositivo móvel (Wikipédia)

A mobile device (ou handheld computer), also referred to as a digital assistant (ou DA), is a computer small enough to hold and operate in the hand. Mobile devices typically have a flat LCD ou OLED screen, a touchscreen interface, and digital or physical buttons. They may also have a physical keyboard. Many mobile devices can connect to the Internet and connect with other devices, such as car entertainment systems or headsets, via Wi-Fi, Bluetooth, cellular networks, or near-field communication. Integrated cameras, the ability to place and receive voice and video telephone calls, video games, and Global Positioning System (GPS) capabilities are common. Power is typically provided by a lithium-ion battery. Mobile devices may run mobile operating systems that allow third-party applications to be installed and run.

An iPhone smartphone and iPad tablet—two examples of mobile devices

Early smartphones were joined in the late 2000s by larger tablets. Input and output are usually via a touchscreen interface. Phones/tablets and personal digital assistants may provide much of the functionality of a laptop/desktop computer in addition to exclusive features. Enterprise digital assistants can provide additional business functionality, such as integrated data capture via barcode, RFIDe smart card readers.

By 2010, mobile devices often contained sensors such as accelerometers, magnetometers e gyroscopes, allowing the detection of orientation and motion. Mobile devices may provide biometric user authentication, such as face recognition or fingerprint recognition.

Some of the major global manufacturers of mobile devices include Apple, Samsung, Xiaomi, Oppo, Vivo, Huawei, Realme, Motorola e OnePlus, cash app account

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