What is a PDA mobile phone, and what is the difference between a PDA and a smartphone

To determine whether a mobile phone is a smartphone, it is not to see whether it supports ***, whether it supports HTML page browsing, whether it supports external memory cards and other functions, but whether it is a mobile phone with an operating system. In other words, we need to look at the program extensibility of the operating system to see if it can support third-party software installation and application.

The so-called smartphone is a mobile phone that contains some PDA functions, such as personal information management, but at present, the function is much weaker than PDA, PDA is the abbreviation of Personal Digital Assistant, which literally means "personal digital assistant". This handheld device centralizes multiple functions such as computing, faxing, and networking. Not only can it be used to manage personal information (such as contacts, plans, etc.), but more importantly, it can be used to browse the Internet, send and receive emails, send faxes, and even use it as a mobile phone.

Most importantly, all of these functions can be implemented wirelessly. Of course, not all of the above features are available in any PDA; Even if it does, it may not be possible due to the lack of corresponding services. However, it is foreseeable that the trend and trend of PDA development is multi-functional such as computing, communication, network, storage, entertainment, and e-commerce'Fusion.

PDAs are generally not equipped with keyboards, but are typed by hand or voice. The main operating systems used by PDA are Palm OS, Windows CE and the development can be traced back to the Newton Message Pad launched by Apple in 1993. Soon after, a similar product was launched.

At present, the ** of PDA is still on the high side, but experts believe that it will eventually enter the "homes of ordinary people" and become a real "personal digital assistant". The above is a generalized PDA.

At present, there is a narrow understanding of PDA. PDA in the narrow sense can be referred to as electronic notepad, which has a relatively simple function, mainly to manage personal information, such as contacts, notes and memos, schedules, notes, calculators, recordings and dictionaries. And these functions are solidified, and no new functions can be added according to the user's requirements.

PDA in a broad sense mainly refers to handheld computers, but of course includes other small digital devices with similar functions. There are also different interpretations of the term PDA. Pocket computers in the narrow sense do not have a keyboard and use handwriting, voice, or soft keyboard input.

Broadly speaking, handheld computers include both those without a keyboard and those with keyboards. However, in the Chinese market, almost all handheld computers do not have keyboards.