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what is mobile phone

Mobile data gives you an Internet connection anywhere as long as you’re connected to a cellular network. Sound quality can remain a problem due to the design of the phone, the quality of the cellular network and compression algorithms used in long-distance calls. Along with the texting and camera features, cell phones started to be made with a limited capability to access the Internet, known as “data services.” The earliest phone browsers were proprietary and only allowed for the use of a small subsection of the Internet, allowing users to access items like weather, news, and sports updates. Recently, unique content for mobile phones has been emerging, from ringtones and ringback tones to mobisodes, video content that has been produced exclusively for mobile phones. In. 5G is a technology and term used in research papers and projects to denote the next major phase in mobile telecommunication standards beyond the 4G/IMT-Advanced standards. A mobile app is a computer program designed to run on a mobile device, such as a smartphone. By contrast, smartphones generally use a mobile operating system that often shares common traits across devices. Mobile phone manufacturers within Europe are subject to the WEEE directive, and Australia has introduced a mobile phone recycling scheme. Cryptocurrency: Our World's Future Economy? They possess technology that enables them to activate the microphones in mobile phones remotely in order to listen to conversations which take place near the phone. Tech's On-Going Obsession With Virtual Reality. Phones with screens larger than 130 millimetres (5.2 in) are often called "phablets." Mobile telephone, also called mobile phone, portable device for connecting to a telecommunications network in order to transmit and receive voice, video, or other data. In that case much lower transmitter powers are used to avoid broadcasting beyond the cell. 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,[1] and devices such as the car phone. While the earliest generation of mobile phones could only make and receive calls, today’s mobile phones do a lot more, accommodating web browsers, games, cameras, video players and navigational systems. [citation needed], On 31 May 2011, the World Health Organization stated that mobile phone use may possibly represent a long-term health risk,[72][73] classifying mobile phone radiation as "possibly carcinogenic to humans" after a team of scientists reviewed studies on mobile phone safety. A mobile phone is a wireless handheld device that allows users to make and receive calls. 6 Cybersecurity Advancements Happening in the Second Half of 2020, 6 Examples of Big Data Fighting the Pandemic, The Data Science Debate Between R and Python, Online Learning: 5 Helpful Big Data Courses, Behavioral Economics: How Apple Dominates In The Big Data Age, Top 5 Online Data Science Courses from the Biggest Names in Tech, Privacy Issues in the New Big Data Economy, Considering a VPN? Donner, Jonathan, and Steenson, Molly Wright. Privacy Policy S    [53][54], The movements of a mobile phone user can be tracked by their service provider and if desired, by law enforcement agencies and their governments. Due to bandwidth limitations each cell will have a maximum number of cell phones it can handle at once. [64], Accidents involving a driver being distracted by talking on a mobile phone have begun to be prosecuted as negligence similar to speeding. A feature phone has additional functions over and above a basic mobile phone which is only capable of voice calling and text messaging. Up until that point, smartphone application distribution depended on third-party sources providing applications for multiple platforms, such as GetJar, Handango, Handmark, and PocketGear. The cells are therefore sized depending on the expected usage density, and may be much smaller in cities. ", "WHO: Cell phone use can increase possible cancer risk", "Agents Classified by the IARC Monographs, Volumes 1–107", "Cell phones are as carcinogenic as coffee", "World Health Organization: Cell Phones May Cause Cancer", "Electromagnetic fields and public health: mobile telephones and their base stations", "Mobile phone use and glioma risk: comparison of epidemiological study results with incidence trends in the United States", "France warns against excessive mobile phone use", "Mobile Phone and System Are Designed In A Novel Way To Have Minimum Electromagnetic Wave Transmission In Air and Minimum Electrical Power Consumption", "Report of Partial Findings from the National Toxicology Program Carcinogenesis Studies of Cell Phone Radiofrequency Radiation in Hsd: Sprague Dawley® SD rats (Whole Body Exposures) – Draft 5-19-2016", "The Secret Life Series – Environmental Impacts of Cell Phones", "E-waste research group, Facts and figures", Adams, Mike "Plea Urges Anti-Theft Phone Tech", "IMEIpro – free IMEI number check service", "How stolen phone blacklists will tamp down on crime, and what to do in the mean time", "Polish charity gets huge phone bill thanks to stork", "Is your mobile phone helping fund war in Congo? Although these phones are intended to prevent immodesty, some vendors report good sales to adults who prefer the simplicity of the devices; other Orthodox Jews question the need for them. N    Some displays are integrated with pressure-sensitive digitizers, such as those developed by Wacom and Samsung,[26] and Apple's "3D Touch" system. [56][57], Hackers are able to track a phone's location, read messages, and record calls, just by knowing the phone number.[58]. The mobile phone system works like a two-way radio, and includes the individual handset and the base stations. Mobile phones have central processing units (CPUs), similar to those in computers, but optimised to operate in low power environments. [8] Several other countries then followed in the early to mid-1980s. Deep Reinforcement Learning: What’s the Difference? A pilot project in Bali was launched in 2011 by the International Finance Corporation and an Indonesian bank, Bank Mandiri. Malicious VPN Apps: How to Protect Your Data. While the phone is turned on, the geographical location of a mobile phone can be determined easily (whether it is being used or not) using a technique known as multilateration to calculate the differences in time for a signal to travel from the mobile phone to each of several cell towers near the owner of the phone. [53], China has proposed using this technology to track the commuting patterns of Beijing city residents. [350], According to the Federal Communications Commission, one out of three robberies involve the theft of a cellular phone. In some parts of the world, mobile phone sharing is common. A    Mobile phone use while driving, including talking on the phone, texting, or operating other phone features, is common but controversial. Multiple SIM cards may be used to take advantage of the benefits of different calling plans. [73][79] However, a study published 24 March 2012, in the British Medical Journal questioned these estimates because the increase in brain cancers has not paralleled the increase in mobile phone use. Cellular can greatly increase the capacity of simultaneous wireless phone calls. Most early content for mobile phones tended to be copies of legacy media, such as banner advertisements or TV news highlight video clips. For example, a particular plan might provide for cheaper local calls, long-distance calls, international calls, or roaming. 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. Both the SIM card and the handset can be tracked. What uses mobile data on a cell phone? The mobile phone has been used in a variety of diverse contexts in society. T    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). Make the Right Choice for Your Needs. Liquid-crystal displays are the most common; others are IPS, LED, OLED, and AMOLED displays. [1] The first handheld mobile phone was demonstrated by John F. Mitchell[2][3] and Martin Cooper of Motorola in 1973, using a handset weighing c. 2 kilograms (4.4 lbs). The average phone battery lasts 2–3 years at best. Samsung has retained its top position since then. 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. New standards beyond 4G are currently being developed by standardization bodies, but they are at this time seen as under the 4G umbrella, not for a new mobile generation. The first version of the GSM (=2G) standard had 6,000 pages. [91] Telecom carriers, depending upon local regulation can or must implement blocking of blacklisted phones in their network. The 5G system uses higher frequency waves and a closer cell structure, which changes the networking style and promises greater bandwidth for users. [86], The average user replaces their mobile phone every 11 to 18 months,[87] and the discarded phones then contribute to electronic waste. The SIM securely stores the service-subscriber key (IMSI) and the Ki used to identify and authenticate the user of the mobile phone. [97], In Israel, similar phones to kosher phones with restricted features exist to observe the sabbath; under Orthodox Judaism, the use of any electrical device is generally prohibited during this time, other than to save lives, or reduce the risk of death or similar needs. O    This was followed in 1981 by the simultaneous launch of the Nordic Mobile Telephone (NMT) system in Denmark, Finland, Norway, and Sweden. The SIM card allows users to change phones by simply removing the SIM card from one mobile phone and inserting it into another mobile phone or broadband telephony device, provided that this is not prevented by a SIM lock. Anyone can report their phone as lost or stolen with their Telecom Carrier, and the IMEI would be blacklisted with a central registry. There’s more than one way to find out if a phone number belongs to a mobile phone or a landline. For the film, see, Portable device to make telephone calls using a radio link. The advent of widespread text-messaging has resulted in the. There are 1,000 MB in 1 GB of data. In Egypt, Israel, Japan, Portugal, and Singapore, both handheld and hands-free use of a mobile phone (which uses a speakerphone) is banned. #    The GSM (2G) has evolved into 3G, 4G and 5G. The first SMS message was sent from a computer to a mobile phone in 1992 in the UK while the first person-to-person SMS from phone to phone was sent in Finland in 1993. - Renew or change your cookie consent, Cellular Phone, Cell Phone, smartphone, smart phone, Optimizing Legacy Enterprise Software Modernization, How Remote Work Impacts DevOps and Development Trends, Machine Learning and the Cloud: A Complementary Partnership, Virtual Training: Paving Advanced Education's Future, IIoT vs IoT: The Bigger Risks of the Industrial Internet of Things, MDM Services: How Your Small Business Can Thrive Without an IT Team. Early predecessors of cellular phones included analog radio communications from ships and trains. J    E    The first mobile news service, delivered via SMS, was launched in Finland in 2000,[citation needed] and subsequently many organizations provided "on-demand" and "instant" news services by SMS. A 2011 study reported that over 90% of college students surveyed text (initiate, reply or read) while driving. I    On the positive side, they help families stay connected and are helpful in emergencies. This sparked competition in the sector as the new operators challenged the incumbent 1G network operators. Lennart Hardell and other authors of a 2009 meta-analysis of 11 studies from peer-reviewed journals concluded that cell phone usage for at least ten years "approximately doubles the risk of being diagnosed with a brain tumor on the same ('ipsilateral') side of the head as that preferred for cell phone use". In 1983, the DynaTAC 8000x was the first commercially available handheld mobile phone. [citation needed], The introduction of Apple's App Store for the iPhone and iPod Touch in July 2008 popularized manufacturer-hosted online distribution for third-party applications (software and computer programs) focused on a single platform. ", "How To Prolong Your Cell Phone Battery's Life Span", "Should You Leave Your Smartphone Plugged Into The Charger Overnight? This is even more greatly increased when phone companies implemented digital networks. Are Insecure Downloads Infiltrating Your Chrome Browser? [17] Consequently, the industry began looking to data-optimized fourth-generation technologies, with the promise of speed improvements up to ten-fold over existing 3G technologies. [37] During Q2 2018, Huawei overtook Apple as the world's second-largest phone manufacturer.[38]. They are convenient. A simulation study at the University of Utah found a sixfold increase in distraction-related accidents when texting.[61]. Y    [31][32], Mobile phones require a small microchip called a Subscriber Identity Module or SIM card, in order to function. However, the cellular networks used for mobile phones, now called “smartphones” when they encompass modern design, have also evolved. [80] Certain countries, including France, have warned against the use of mobile phones by minors in particular, due to health risk uncertainties. Mobile phones are both good and bad. A mobile operating system is an operating system for mobile phones, tablets, smartwatches, 2-in-1 PCs (that can be convert to a laptop mode or detach and work as a tablet mode), smart speaker, or other mobile devices.While computers such as typical laptops are 'mobile', the operating systems used on them are generally not considered mobile … Feature phones typically provide voice calling and text messaging functionality, in addition to basic multimedia and Internet capabilities, and other services offered by the user's wireless service provider. In March 2011, a U.S. insurance company, State Farm Insurance, announced the results of a study which showed 19% of drivers surveyed accessed the Internet on a smartphone while driving. V    Soon afterwards, other media content appeared, such as news, video games, jokes, horoscopes, TV content and advertising. Terms of Use - Base station antennae are mounted high off the ground (on a tower or roof) to get the widest coverage. A 2010 study reviewed the incidence of mobile phone use while cycling and its effects on behaviour and safety. Kenya's M-PESA mobile banking service, for example, allows customers of the mobile phone operator Safaricom to hold cash balances which are recorded on their SIM cards. ... For the last 15 years, the Democratic Republic of the Congo has been a major source of natural resources for the mobile phone industry. A hybrid mobile phone can hold up to four SIM cards, with a phone having an IMEI per SIM Card. One method is to send the phone to a country where the telecom carriers are not required to implement the blacklisting and sell it there,[92] another involves altering the phone's IMEI number. With both of these operating system platforms, it has become routine for engineers to build hundreds of different types of functionality into modern smartphones through the design of mobile applications or “apps.” Application stores facilitate the purchase and use of these diverse applications. Following the success of the App Store, other smartphone manufacturers launched application stores, such as Google's Android Market (later renamed to the Google Play Store) and RIM's BlackBerry App World and Android-related app stores like F-Droid. [66] Japan prohibits all mobile phone use while driving, including use of hands-free devices. Mobile phones typically connect to … "[96] The company Fairphone has worked to develop a mobile phone that does not contain conflict minerals. 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),[9][10][11] leading to the introduction of digital signal processing in wireless communications. Battery life can be extended by draining it regularly, not overcharging it, and keeping it away from heat. Smart phone has an open platform for apps. W    [36] In Q1 2012, Samsung surpassed Nokia, selling 93.5 million units as against Nokia's 82.7 million units. de Waard, D., Schepers, P., Ormel, W. and Brookhuis, K., 2010, "Apple to add kill switches to help combat iPhone theft" by Jaxon Van Derbeken, List of digital distribution platforms for mobile devices, National Highway Traffic Safety Administration, List of countries by number of mobile phones in use, "Meet Marty Cooper – the inventor of the mobile phone", "Gartner Says Worldwide Smartphone Sales Grew 3.9 Percent in First Quarter of 2016", "Nokia Captured 9% Feature Phone Marketshare Worldwide in 2016", "Swedish National Museum of Science and Technology", https://www.ieee-ukandireland.org/duke-of-cambridge-presents-maxwell-medals-to-gsm-developers/, "Keywords to understanding Sony Energy Devices – keyword 1991", "IEEE Medal for Environmental and Safety Technologies Recipients", IEEE Medal for Environmental and Safety Technologies, Institute of Electrical and Electronics Engineers, "feature phone Definition from PC Magazine Encyclopedia", "Don't call it a phablet: the 5.5" Samsung Galaxy S7 Edge is narrower than many 5.2" devices", "We're gonna need Pythagoras' help to compare screen sizes in 2017", "The Samsung Galaxy S8 will change the way we think about display sizes", "Why Mobile Voice Quality Still Stinks—and How to Fix It", "Why Is Cell Phone Call Quality So Terrible? [77], One study of past mobile phone use cited in the report showed a "40% increased risk for gliomas (brain cancer) in the highest category of heavy users (reported average: 30 minutes per day over a 10‐year period)". What is a Mobile Phone? In order to handle the high traffic, multiple towers can be set up in the same area (using different frequencies). For example: In 1998, one of the first examples of distributing and selling media content through the mobile phone was the sale of ringtones by Radiolinja in Finland. The IEEE/RSE awarded to Thomas Haug and Philippe Dupuis the 2018 James Clerk Maxwell medal for their contributions to the first digital mobile telephone standard. Mobile payments were first trialled in Finland in 1998 when two Coca-Cola vending machines in Espoo were enabled to work with SMS payments. From 1983 to 2014, worldwide mobile phone subscriptions grew to over seven billion; enough to provide one for every person on Earth. They allow older people to remain independent in their homes because help can be summoned quickly. [14][15] In 2001, the third generation (3G) was launched in Japan by NTT DoCoMo on the WCDMA standard. [30] It is only natural for these rechargeable batteries to chemically age, which is why the performance of the battery when used for a year or two will begin to deteriorate. These first-generation (1G) systems could support far more simultaneous calls but still used analog cellular technology. There are obvious economic benefits, but often familial customs and traditional gender roles play a part. Also, while mobile phones used to be mainly known as “cell phones” or cellular phones, today’s mobile phones are more commonly called “smartphones” because of all of the extra voice and data services that they offer. 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. Many of the wireless devices use a Lithium-Ion (Li-Ion) battery, which charges 500–2500 times, depending on how users take care of the battery and the charging techniques used. A mobile phone typically operates on a cellular network, which is composed of cell sites scattered throughout cities, countrysides and even mountainous regions. Please update this article to reflect recent events or newly available information. In the developed world, smartphones have now overtaken the usage of earlier mobile systems. [60] [59] Many jurisdictions prohibit the use of mobile phones while driving. The world's largest individual mobile operator by number of subscribers is China Mobile, which has over 902 million mobile phone subscribers as of June 2018[update]. A large body of research exists, both epidemiological and experimental, in non-human animals and in humans. The Apple and Android operating systems are installed in the lion's share of new smartphones by various manufacturers. [62] In 2013, a national survey in the US reported the number of drivers who reported using their cellphones to access the Internet while driving had risen to nearly one of four. D    Android OS has been the best-selling OS worldwide on smartphones since 2011. As these devices evolved, they became smaller and more features were added, such as multimedia messaging service (MMS), which allowed users to send and receive images. 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 calls over a radio frequency link while the user is moving within a telephone service area. Illinois became the 17th American state to enforce this law. It works by communicating with a nearby base station (also called a "cell site") which connects it to the main phone … [12] In 2018, the GSM was used by over 5 billion people in over 220 countries. Dedicated mobile phone stores should have a sample handset available, and it takes seconds to go into the settings menu and look at the Storage section. Join nearly 200,000 subscribers who receive actionable tech insights from Techopedia. Such phones are approved for use by essential workers, such as health, security, and public service workers. [citation needed] Police data in San Francisco show that half of all robberies in 2012 were thefts of cellular phones. In other countries, including the UK and France and in many U.S. states, only handheld phone use is banned while hands-free use is permitted. For the film, see, "Handphone" redirects here. Now, a dominant model called 5G is being unrolled throughout the world. [74] The mobile phone is in category 2B, which ranks it alongside coffee and other possibly carcinogenic substances. R    The common components found on all mobile phones are: Low-end mobile phones are often referred to as feature phones and offer basic telephony. What is the difference between cloud computing and web hosting? [93] Even so, mobile phones typically have less value on the second-hand market if the phones original IMEI is blacklisted. 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). While the earliest generation of mobile phones could only make and receive calls, today’s mobile phones do a lot more, accommodating web browsers, games, cameras, video players and navigational systems. [81] Mobile pollution by transmitting electromagnetic waves can be decreased up to 90% by adopting the circuit as designed in mobile phone and mobile exchange. In reality the difference can be pretty small as many feature phones has advanced features like touch screens, installable Java apps etc. [40] In 2014, there were more than seven billion mobile phone subscribers worldwide, a number that is expected to keep growing. It is widely considered dangerous due to distracted driving. Most of these MMS-capable devices were also equipped with cameras, which allowed users to capture photos, add captions, and send them to friends and relatives who also had MMS-capable phones. In 1917, Finnish inventor Eric Tigerstedt filed a patent for a "pocket-size folding telephone with a very thin carbon microphone". Cash can be deposited or withdrawn from M-PESA accounts at Safaricom retail outlets located throughout the country and can be transferred electronically from person to person and used to pay bills to companies. The mobile phone can be used to communicate over long distances without wires. G    Due to the increasing complexity of mobile phones, they are often more like mobile computers in their available uses. M    B    Later, mobile phones belonging to the Global System for Mobile Communications (GSM) network became capable of sending and receiving text messages. This database of laws provides a comprehensive view of the provisions of laws that restrict the use of mobile communication devices while driving for all 50 states and the District of Columbia between 1992 when first law was passed, through 1 December 2010. More of your questions answered by our Experts. At the same time, the networks used by the smart have also evolved. Mobile phones offering only those capabilities are known as feature phones; mobile phones which offer greatly advanced computing capabilities are referred to as smartphones. [95] In a 2012 news story, The Guardian reported: "In unsafe mines deep underground in eastern Congo, children are working to extract minerals essential for the electronics industry. Nokia was the market leader in mobile phones from 1998 to 2012. This has introduced additional difficulties for law enforcement officials when attempting to distinguish one usage from another in drivers using their devices. where cell phone companies will bring a truck with equipment to host the abnormally high traffic with a portable cell. Depending on the device's type and design, the screen fills most or nearly all of the space on a device's front surface. Modern mobile telephone services use a cellular network We’re Surrounded By Spying Machines: What Can We Do About It? P    A mobile phone is a portable telephone to make and receive wireless phone calls. Branchless banking has also been successful in South Africa and the Philippines. Some organizations assist victims of domestic violence by providing mobile phones for use in emergencies. Nokia for example marketed its Asha series as a smart phones … The GSM standard is a European initiative expressed at the CEPT ("Conférence Européenne des Postes et Telecommunications", European Postal and Telecommunications conference). [89] On 10 June 2013, Apple announced that it would install a "kill switch" on its next iPhone operating system, due to debut in October 2013.[90]. Screen sizes are often measured in diagonal inches or millimeters; feature phones generally have screen sizes below 90 millimetres (3.5 in). The Franco-German R&D cooperation demonstrated the technical feasibility, and in 1987 a Memorandum of Understanding was signed between 13 European countries who agreed to launch a commercial service by 1991. [98], "Cell phone" redirects here. "Beyond the Personal and Private: Modes of Mobile Phone Sharing in Urban India." In September 2010, the US National Highway Traffic Safety Administration (NHTSA) reported that 995 people were killed by drivers distracted by cell phones. Are These Autonomous Vehicles Ready for Our World? all the features make mobile completely powerful in user eyes. However, in the developing world, they account for around 50% of mobile telephony. The first two commercially available technologies billed as 4G were the WiMAX standard, offered in North America by Sprint, and the LTE standard, first offered in Scandinavia by TeliaSonera. Feature phones have basic software platforms. Viable Uses for Nanotechnology: The Future Has Arrived, How Blockchain Could Change the Recruiting Game, C Programming Language: Its Important History and Why It Refuses to Go Away, INFOGRAPHIC: The History of Programming Languages, 5 SQL Backup Issues Database Admins Need to Be Aware Of, Global System for Mobile Communications (GSM), INFOGRAPHIC: How Mobile Apps are Invading Your Privacy, 3 Ways to Charge Your Devices Without Plugging Them In. All mobile phones have a unique identifier called IMEI. [75][76], Some recent[when?] [4] In 1979, Nippon Telegraph and Telephone (NTT) launched the world's first cellular network in Japan. [citation needed]. There are, however, a number of ways to circumvent a blacklist.

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