ABSTRACT
However, as handheld devices have continued to change rapidly in both form and function, application of the term PDA has broadened. ere are several types of handheld information devices: mobile phones, digital cameras, personal media players, data storage devices, and mobile Internet devices; however, increasingly, one single device incorporates several or all of these functions and true PDAs have virtually disappeared. In fact, with the introduction of the Apple iPhone in 2007, a new revolution in PDA development and advancement began to compete with the iPhone, which really is a portable computer that also happens to be a phone.
