What is PDA?

PDA, the full name of the English Personal Digital Assistant, that is, personal digital assistant, generally refers to the handheld computer. Compared to traditional computers, PDAs have the advantage of being lightweight, compact, and mobile without losing the power of their functions, and the disadvantage of having too small a screen and limited battery life.PDAs usually use a stylus as the input device, and a memory card as the external storage medium. In terms of wireless transmission, most PDAs have infrared and Bluetooth interfaces to ensure the convenience of wireless transmission. Many PDAs are also able to have Wi-Fi connectivity as well as GPS.

Personal computers that fall between traditional PCs and PDAs in terms of portability are laptops and tablets.

The first PDA was the Newton from Apple in 1992, but it was not a commercial success. Later, Graffiti, an input method specifically designed for handwriting, appeared, and a PDA company that utilized this method as an input method launched the Palm line of products, which was a huge success. At the end of the 20th century, Microsoft entered this field, and first launched the Windows CE 1.0 operating system, but the system in all aspects of the performance is not satisfactory, but then Microsoft launched the Windows Pocket Edition 2002 at one fell swoop to establish the leading position of the PPC operating system.

Currently the most popular Pocket PC operating system platforms are Palm OS and Microsoft's Windows Mobile series

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