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The iPhone (pronounced /?a?.fo?n/ EYE-fohn) is a line of Internet and multimedia-enabled smartphones designed and marketed by Apple Inc. The first iPhone was introduced on January 9, 2007.[6]
An iPhone functions as a camera phone, including text messaging and visual voicemail, a portable media player, and an Internet client, with e-mail, web browsing, and Wi-Fi connectivity. The user interface is built around the device’s multi-touch screen, including a virtual keyboard rather than a physical one. Third-party applications are available from the App Store, which launched in mid-2008 and now has well over 200,000[7] “apps” approved by Apple. These apps have diverse functionalities, including games, reference, GPS navigation, social networking, and advertising for television shows, films, and celebrities.
There have been four generations of iPhone hardware, and they have been accompanied by four major releases of iOS (formerly iPhone OS). The original iPhone established design precedents like screen size and button placement that have persisted through all models. The iPhone 3G brought 3G cellular network capabilities and A-GPS location. The iPhone 3GS brought a compass, faster processor, and higher resolution camera, including video. The iPhone 4 has two cameras for FaceTime video calling and a higher resolution display. It was released on June 24, 2010 in certain countries and is in the process of being released worldwide.
The iPad is a tablet computer designed and developed by Apple. It is particularly marketed for consumption of media such as books and periodicals, movies, music, and games; and for general web and e-mail access. At about 700 grams, its size and weight are between most contemporary smartphones and laptop computers. Apple sold 3 million iPads in the first 80 days after its April 2010 release.[13][7]
The iPad runs the same operating system as the previously introduced iPod Touch and iPhone, although as of summer 2010, it was a version behind: iPhone OS 3.2, with an update to iOS 4 promised for fall 2010. Likewise, it is controlled by a multitouch display sensitive to fingertip contact with up to eleven fingers.[14] This is unlike most previous tablet computers which instead used a pressure-triggered stylus.[15][16][17] The iPad can run its own specific applications as well as those developed originally for the iPhone. Without modification, it will only run programs approved by Apple and distributed via its online store.
The iPad uses Wi-Fi or a 3G mobile data connection to browse the Internet, load and stream media, and install software.[18][19][20] A USB cable is required to sync the iPad with iTunes on a personal computer, by which the device is managed.[21] Media reaction to the device has generally been neutral or positive, with more positive reaction after the device was launched.
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