The mobile phone (also called a wireless phone or cellular phone) is a short-range, portable electronic device used for mobile voice or data communication over a network of specialized base stations known as cell sites. In addition to the standard voice function of a telephone, current mobile phones may support many additional services, and MP3 player accessories, such as SMS for text messaging, email, packet switching for access to the Internet, gaming, bluetooth, infrared, cheap mobile phone, camera with video recorder and MMS for sending and receiving photos and video. Most current mobile phones connect to a cellular network of base stations (cell sites), which is in turn interconnected to the public switched telephone network (PSTN) (the exception is satellite phones and MP3 accessories).
The Apple iPhone is an internet connected multimedia smartphone with a flush multi-touch screen and a minimal hardware interface. Lacking a physical keyboard, a virtual keyboard is rendered on the touch screen. The iPhone’s functions include those of a camera phone and portable media player (equivalent to the iPod) in addition to text messaging and visual voicemail. It also offers Internet services including e-mail, web browsing, and local Wi-Fi connectivity. The first generation phone hardware was quad-band GSM with EDGE; the second generation also adds UMTS with HSDPA.
Apple announced the iPhone on January 9, 2007. The announcement was preceded by rumors and speculation that circulated for several months. The iPhone was initially introduced in the United States on June 29, 2007 and is in the process of being introduced worldwide. It was named Time magazine’s Invention of the Year in 2007.On July 11, 2008, the iPhone 3G was released and supported faster 3G data speeds and Assisted GPS.
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