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Mobile phone Wikipedia

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. This can lead to drivers being stopped for using their device illegally for a phone call when, in fact, they were using the device legally, for example, when using the phone’s incorporated controls for car stereo, GPS or satnav. This is more apparent in countries which ban both handheld and hands-free usage, rather than those which ban handheld use only, as officials cannot easily tell which function of the mobile phone is being used simply by looking at the driver. Due to the increasing complexity of mobile phones, they are often more like mobile computers in their available uses. In March 2011, a US 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. In September 2010, the US National Highway Traffic Safety Administration (NHTSA) reported that 995 people were killed by drivers distracted by cell phones.

• Mobile phones also support a variety of multimedia capabilities, such as digital photography, video recording, and gaming.
• In Japanese mobile phone culture for example, mobile phones are often decorated with charms.
• 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.
• Many passengers are pressing airlines and their governments to allow and deregulate mobile phone use, while some airlines, under the pressure of competition, are also pushing for deregulation or seeking new technology which could solve the present problems.
• Mobile phones are considered an important human invention as it has been one of the most widely used and sold pieces of consumer technology.

Soon afterwards, other media content appeared, such as news, video games, jokes, horoscopes, TV content and advertising. Mobile phones are used for a variety of purposes, such as keeping in touch with family members, for conducting business, and in order to have access to a telephone in the event of an emergency. In February 2014, 93% of mobile developers were targeting smartphones first for mobile app development. Up until that point, smartphone application distribution depended on third-party sources providing applications for multiple platforms, such as GetJar, Handango, Handmark, and cash lounge casino PocketGear.

• Studies have shown that around 40–50% of the environmental impact of mobile phones occurs during the manufacture of their printed wiring boards and integrated circuits.
• A study by the London School of Economics found that banning mobile phones in schools could increase pupils’ academic performance, providing benefits equal to one extra week of schooling per year.
• Mobile phones are considered an important human invention as they have been one of the most widely used and sold pieces of consumer technology.
• As of 2007, some hospitals had banned mobile devices due to a common misconception that their use would create significant electromagnetic interference.
• Soon afterwards, other media content appeared, such as news, video games, jokes, horoscopes, TV content and advertising.
• For feature phones as of 2016update, the top-selling brands were Samsung, Nokia and Alcatel.

Beyond traditional voice communication, digital mobile phones have evolved to support a wide range of additional services. Contrary to popular misconception, the Federal Aviation Administration (FAA) does not actually prohibit the use of personal electronic devices (including cell phones) on aircraft. By contrast, smartphones generally use a mobile operating system that often shares common traits across devices.

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This has introduced additional difficulties for law enforcement officials when attempting to distinguish one usage from another in drivers using their devices. In other countries, including the UK and France and in many US states, only handheld phone use is banned while hands-free use is permitted. Mobile phone use while driving, including talking on the phone, texting, or operating other phone features, is common but controversial. 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. In the UK and US, law enforcement and intelligence services use mobile phones to perform surveillance operations.

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In the earliest mobile phone systems by contrast, all control was done manually; the customer would search for an unoccupied channel and speak to a mobile operator to request connection of a call to a landline number or another mobile. A cellular network mobile phone system gets its name from dividing the service area into many small cells, each with a base station with (for example) a useful range on the order of a kilometer (mile). As well, technical limitations such as antenna efficiency and receiver design limit the range of frequencies a customer unit could use. The critical advantage that modern cellular networks have over predecessor systems is the concept of frequency reuse allowing many simultaneous telephone conversations in a given service area. Feature phones and basic mobile phones tend to use a proprietary, custom-designed software and user interface.

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The first GSM phones and many feature phones had NOR flash memory, from which processor instructions could be executed directly in an execute in place architecture and allowed for short boot times. Capacity was further increased when phone companies implemented digital networks. Due to bandwidth limitations each cell will have a maximum number of cell phones it can handle at once. The cell towers are usually interconnected to each other and the phone network and the internet by wired connections.

Today, mobile phones are globally ubiquitous, and in almost half the world’s countries, over 90% of the world population, or approximately 7.2 billion people, owns at least one. Mobile phones also support a variety of multimedia capabilities, such as digital photography, video recording, and gaming. Modern mobile telephony relies on a cellular network architecture, which is why mobile phones are often referred to as ‘cell phones’ in North America.

Restrictions on the use of mobile phones are applied in a number of different contexts, often with the goal of health, safety, security or proper functioning of an establishment, or as a matter of etiquette. 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. Demand for metals used in mobile phones and other electronics fuelled the Second Congo War, which claimed almost 5.5 million lives. Even so, mobile phones typically have less value on the second-hand market if the phones original IMEI is blacklisted.
Most early content for mobile phones tended to be copies of legacy media, such as banner advertisements or TV news highlight video clips. There are a huge variety of apps, including video games, music products and business tools. The first mobile news service, delivered via SMS, was launched in Finland in 2000, and subsequently many organizations provided “on-demand” and “instant” news services by SMS.
A hybrid mobile phone can hold up to four SIM cards, with a phone having a different device identifier for each SIM Card. 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. The SIM card is approximately the size of a small postage stamp and is usually placed underneath the battery in the rear of the unit. Most modern mobile phones use lithium-ion (Li-ion) batteries, which are designed to endure between 500 and 2,500 charge cycles. The typical lifespan of a mobile phone battery is approximately two to three years, although this varies based on usage patterns, environmental conditions, and overall care.