The smartphone is a high-end mobile phone, which combines the functions of personal digital assistants (PDAs) and mobile phones. Current models usually also function as portable media players and camera phones, high-resolution touch screen, web browser, which are able to correctly use and display standard web pages rather than mobile-optimized sites, GPS, Wi-Fi and access to mobile broadband. The smartphone term is generally used to describe the most advanced phones, computing capacity and connections to modern-day on the phone, although the difference may be vague and there is no official definition, what is the difference between them. Definitions change over time, like most phones, feature phones, which are considered today to be the qualities that go beyond mobile phones that had been promoted, such as smart phones in the past. Smartphones run mobile operating systems such as IOS Apple, Google Android, Microsoft Windows 7 Mobile, Symbian, Nokia, RIM BlackBerry OS, and embedded Linux distributions such as Maemo and Meego. These systems can be installed in many different phones, and generally each device can receive multiple OS software updates during their lifetime. Smartphones run third party applications using advanced programming interfaces (API), these applications can allow for better integration with the phone's operating system and hardware that is typically equipped with telephones. In comparison, the phones are most often run on proprietary firmware, with support through third-party software platforms like Java ME or BREW .
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