The iPad runs on iOS, the same operating system used on Apple's iPod Touch and iPhone, and can run its own applications as well as iPhone applications. Without modification or a developer certificate, the iPad will only run programs approved by Apple and distributed via the Apple App Store. Thanks.
Suppose that you have just been given a secondhand iPad without the original packaging. Apple's iPad comes in two varieties: one with the ability to use 3G Internet access from a cellular provider, and another with the ability to connect to Wi Fi access points only. If you are not sure which iPad model you have, you can identify it by the unit's physical characteristics or by examining the device's about screen.
International School Teacher in Singapore, Digital Literacy Coach, IBO Workshop Leader, ADE , who enjoys photography, books, a good cup of coffee and time with family & friends