PDA refers to handheld computers, which can help us accomplish work, study, entertainment, etc. on the move. Its range is large.
By the use of classification, divided into industrial-grade PDA and consumer products PDA.
Industrial-grade PDA is mainly used in the industrial field, the common barcode scanner, rfid reader, POS machine, etc. can be called PDA; Consumer products PDA includes more, smart phones, tablet PCs, handheld game consoles and so on.
PAD refers to the tablet computer, is a small, easy to carry personal computer, touch screen as the basic input device. Its range is smaller.
It is represented by IPAD, Android tablet.
The core of the palm computer is the operating system, the market of the palm computer is mainly used in two types of operating systems: one is the increasingly sophisticated Palm operating system, the use of the Palm system of the palm computer in the world market share accounted for more than 65% of the main Palm, IBM's Workpad, Sony's Clie and TRGpro, handspring and other palm computers, the other category is Microsoft Windows CE series, although a late start, but has broken the Palm OS domination of the situation, and because of the Win CE authorization is more extensive, most of the domestic handheld computers are using the Win CE system, including domestic Lenovo, Founder, as well as foreign companies such as HP, COMPAQ, and so on, all have Windows CE Pocket PCs are launched.
As the two major operating systems, the battery life of the products using PalmOS is longer than that of the products using Win CE; the products configured with color displays do not have the long battery life of the products with monochrome displays; in terms of multimedia performance, Win CE is a bit better than Palm; and in terms of the operating interface and the performance of the applications, WINCE allows the users to be more easily accessible; in addition, in terms of the number of software, Palm is the best choice. number of software, Palm is a bit more than Win CE.
The biggest feature of PDA is that it has an open operating system, supports hardware and software upgrades, and integrates information input, storage, management, and transmission into a single device, which is equipped with powerful functions such as office, entertainment, and mobile communication. Therefore, PDA can be called a mobile office. Of course, not any PDA has all the above functions; even with, but also due to the lack of appropriate services and can not be realized. However, it can be predicted that the trend and trend of PDA development is the integration of computing, communication, networking, storage, entertainment, e-commerce and other multi-functions.
In fact, there is no precise definition for PDA, and some people call the notepad a PDA, which is generally referred to as a PDA with PalmOS, WindowsCE or other open operating system with network functions, and can be freely upgraded by the user's hardware and software. In other words, in addition to expanding the hardware, users can also add software, and even develop their own programs to run on it.
In terms of use, it is simpler than desktop computers, easy to move, functional and practical, eliminating the five major limitations of desktop computers, that is: the limitations of mobility, the complexity of use, the difficulty of mobile networking, the price of the expensive, the use of the idle .