iPad

The iPad (/ˈaɪpæd/ EYE-pad) is a line of tablet computers designed and marketed by Apple Inc. The iPad runs Apple's iOS operating system. The first iPad was released on April 3, 2010; the most recent iPads, the fourth-generation iPad and iPad Mini, were released on November 2, 2012. The user interface is built around the device's multi-touch screen, including a virtual keyboard rather than a physical one. The iPad has Wi-Fi and cellular connectivity (2G, 3G and 4G (third and fourth generations and iPad Mini only)).
An iPad can shoot video, take photos, play music, send and receive email, and browse the web. Other functions—games, reference, GPS navigation, social networking, etc.—can be enabled by downloading apps; as of 2012, the App Store offered more than 700,000 apps by Apple and third parties.^[13]
There are five variants of the iPad: the original, the iPad 2, the third generation, the fourth generation, and the iPad mini.