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.
The iPad comes with several applications, including Safari, Mail, Photos, Video, iPod, iTunes, App Store, iBooks, Maps, Notes, Calendar, and Contacts. Several are improved versions of applications developed for the iPhone or Mac.
The iPad syncs with iTunes on a Mac or Windows PC.Apple ported its iWork suite from the Mac to the iPad, and sells pared down versions of Pages, Numbers, and Keynote apps in the App Store. Although the iPad is not designed to replace a mobile phone, a user can use a wired headset or the built-in speaker and microphone and place telephone calls over Wi-Fi or 3G using a VoIP application. As of June 2012, there were about 225,000 iPad specific apps on the App Store.