IPhone
The iPhone
The
iPhone (/ˈaɪfoʊn/ EYE-fohn)
is a line of smartphones designed and marketed by Apple Inc.
It runs Apple's iOS
mobile operating system, known as the "iPhone OS" until June 2010,
alongside the release of iOS 4. The first generation iPhone was released on
June 29, 2007; and the most recent iPhone, the sixth-generation iPhone 5, on
September 21, 2012. The user interface is built around the device's multi-touch
screen, including a virtual keyboard. The iPhone has Wi-Fi and cellular
connectivity (2G, 3G, 4G, and LTE).
An
iPhone can shoot video (though this was not a standard feature
until the iPhone
3GS), take photos, play music, send and receive email, browse the
web, send texts, and receive visual
voicemail. Other functions—video games, reference works, GPS navigation, social networking, etc.—can
be enabled by downloading apps; as of 2012, the App
Store offered more than 775,000 apps by Apple and third parties.
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There
are six generations of iPhone models, each accompanied
by one of the six major releases of iOS. The original 1st generation iPhone was a GSM phone, and
established design precedents, such as a button placement that has persisted
through all models and a screen size maintained for the next four iterations.
The iPhone
3G added 3G cellular
network capabilities and A-GPS location. The iPhone 3GS
added a faster processor and a higher-resolution camera
that could record video at 480p. The iPhone 4 featured a higher-resolution 960 × 640 "Retina
Display", a VGA front-facing camera for video calling and other apps,
and a 5-megapixel rear-facing camera with 720p video capture. The iPhone 4S
upgrades to an 8-megapixel camera with 1080p video
recording, a dual-core A5 processor, and a natural language voice
control system called Siri. iPhone 5 features the dual-core A6 processor, increases the
size of the Retina display to 4 inches, and replaces the 30-pin connector with
an all-digital Lightning connector. As of 2013, the iPhone
3GS had the longest production run at 1181 days, followed by the iPhone 4 which
was produced for 1174 days.
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The
resounding sales of the iPhone have been credited with reshaping the smartphone
industry and helping make Apple one of the world's most valuable publicly
trading companies in 2011–12. However, there has been criticism of the
company's outsourcing and move of jobs from the US
to China. Apple
and its manufacturing contractor Foxconn have received criticism due to poor working conditions at
the assembly plant in China.
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