What does WAP of China Mobile Company mean? What does GPRS mean? How much do they charge separately?

GPRS (General Packet Radio Service) is a data transmission technology based on GSM, which can be said to be the continuation of GSM. GPRS is different from the way of continuous channel transmission in the past, and it is transmitted in the form of packets, so the cost borne by users is calculated based on the transmitted data, rather than using the whole channel, which is cheaper in theory. WAP is the abbreviation of wireless application protocol. This is a security standard that enables users to obtain information through wireless handheld devices, such as handheld computers, mobile phones, pagers, two-way broadcasting, smart phones and so on. WAP supports most wireless networks, including GSM, CDMA, CDPD, PDC, PHS, TDMA, Flex, Flex, Eden, Tetea, DECT, Datatac and Mobitex. All operating systems support WAP, among which Palm OS, EPOC, Windows CE, FlexOS, OS/9 and JavaOS are specially designed for handheld devices. Some handheld devices, such as PDA, can access the Internet through WAP after installing a micro browser. Micro-browser files are very small, which can better solve the limitations of small memory of handheld devices and large bandwidth of wireless networks. Although WAP can support HTHL and XML, WML is a language specially designed for small screen and keyboard-less handheld devices. WAP also supports WMLScript. This scripting language is similar to JavaScript, but it needs less memory and CPU because it basically has no useless functions contained in other scripting languages.