الحمد لله رب العالمين
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The smart phone

The smart phone is clever phone. (Smart means clever). It is phone with the expanded functions and possibilities. The quantity of functions of the smart phone always was 10 times more than in a simple mobile phone. After all problems which are put before a mobile phone and the smart phone differ. The basic function of phone are vocal calls, and the smart phone besides should be replacement to the pocket computer (handheld computer) though and with the smaller screen.

The sizes of the smart phone and its screen there are some more sizes of a mobile phone.

The basic difference of the smart phone from a mobile phone consists available an operating system of open type. It allows to load into phone of the program of foreign developers, or even most to try to create the program for the device. But it is not necessary to confuse possibilities of an operating system to possibility to load in application phone Java as technology Java used in phones is not an operating system.

The most popular operating system for smart phones it Symbian, with it firm Nokia smart phones are issued. As the considerable part of smart phones is issued under control of Windows Mobile. In Windows Mobile the user interface is similar on Windows for computers. There is mobile version Linux, but it is used less often.

The smart phone is phone with computer functions. Under the form the smart phone is similar to phone. It usually has no touch screen, and typing is made from the standard telephone keyboard. To talk on the smart phone also it is convenient, as well as by phone. However on the telephone keyboard it is inconvenient to type the text, and on the small screen to read the book less comfortably or to look through a spreadsheet. Therefore as high-grade replacement of the pocket personal computer of a handheld computer the smart phone not absolutely approaches. 

Handheld computer (the pocket personal computer)

Handheld computer the pocket personal computer this portable computer which possesses wide functionality. In English language reduction PDA — Personal Digital Assistant is used that on Russian it is possible to translate as «the personal digital secretary». Handheld computers often name наладонником because of the small sizes.

Unlike desktop personal computers which are subdivided on some large classes and in the rest are universal enough, pocket computers are more rigidly adhered to own operating systems (OS). For today the basic OS for a handheld computer are: Windows Mobile, Palm OS firms PalmSource, Symbian OS.


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