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What does PDA mean?
According to the use, it is divided into industrial PDA and consumer PDA.
Industrial-grade PDA is mainly used in industrial fields, such as barcode scanner, rfid readers, POS machines, etc., all of which can be called PDA. Consumer PDA includes many things, such as smart phones, tablet computers, handheld game consoles and so on.
PAD refers to a tablet computer, which is a small portable personal computer with a touch screen as the basic input device. Its scope is very small.
Its representatives are IPAD and Android tablet.
The core of PDA is the operating system. There are mainly two kinds of operating systems in the market: one is the increasingly perfect palm operating system, and the palmtop computers using Palm system account for more than 65% of the world market share, mainly Palm, Workpad of IBM, Clie of Sony, TRGpro, handspring and other palmtop computers. The other is Microsoft Windows CE series, which started late, but has broken the situation that Palm OS dominates the world. Moreover, due to the extensive authorization of Win CE, most domestic palmtop computers use Win CE system, including Lenovo, Founder, Hewlett-Packard and Compaq abroad.
As two major operating systems, products using PalmOS have a longer battery life than products using Win CE. The battery life of products equipped with color display screen is not as long as that of monochrome display screen products; Win CE is superior to Palm in multimedia performance. Moreover, in terms of operation interface and application performance, wince can make it easier for users to get started; Besides, Palm has more software than Win CE? .
The biggest feature of PDA is that it has an open operating system, supports software and hardware upgrades, integrates information input, storage, management and transmission, and has powerful functions such as office, entertainment and mobile communication. Therefore, PDA can be called mobile office. Of course, not every PDA has all the above functions; Even if there is, it may not be realized because of the lack of corresponding services. But it can be predicted that the development trend of PDA is the integration of computing, communication, network, storage, entertainment, e-commerce and other functions.
In fact, there is no exact definition of PDA. Some people call Notepad PDA. Generally speaking, PDA refers to PDA with PalmOS, WindowsCE or other open operating systems, which has network function and users can upgrade freely. In other words, in addition to expanding hardware, users can also install software and even develop their own programs to run on it.
In use, it is simpler to operate, more convenient to move and more practical than the desktop computer, which eliminates the five limitations of the desktop computer, namely, limited movement, complicated use, difficult mobile networking, high price and idle use.
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