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IPOD:


ipod touch


The iPod Touch (stylized, trademarked, and marketed as iPod touch) is a portable media playerpersonal digital assistant, and Wi-Fi mobile platform designed and marketed by Apple Inc. The product was launched on September 5, 2007, at an event called The Beat Goes On.[9] The iPod Touch adds the multi-touch graphical user interface to the iPod line. It is the first iPod with wireless access to the iTunes Store, and also has access to Apple's App Store, enabling content to be purchased and downloaded directly on the device. Apple Inc. has sold over 45 million iPod Touch units as of September 2009.[10]

The second generation iPod Touch features external volume controls, a built-in speaker, a contoured back, built-in Nike+Bluetooth support, and the ability to connect a microphone. It was unveiled on September 9, 2008, at the "Let's Rock" keynote presentation.

Apple unveiled the 4th generation iPod Touch on September 1, 2010. It features Apple's Retina display and two cameras; one front-facing camera for FaceTimeSkype, and other video chat applications, photos and high-definition video recording and one rear-facing camera for photos and HD video recording. It also contains Apple's A4 for faster processing, a microphone for communication, voice recognition, and voice memos, which can be useful for recording things, such as an academic tutorial, a voice lesson, or a college lecture, and a three-axis gyroscopic sensor which enables the device to recognize approximately how far, fast, and in which direction it has moved in space. The device originally shipped with iOS 4.1, which added Game Center to iOS along with the ability to use FaceTime through Wi-Fi.

1st generation                                                 

2st generation

3rd generation

4th generation