The time that the browser's history is not long, and the spread of the Dot COM bubble should be started to develop to today's software PC, mobile phone, PDA ... all have important software PCs, mobile phones, PDA ... Browser, although the function is weak, it has a platform-independent, as long as the server returns the files in line with the web standard, it can be parsed by the browser to the advantage of the browser: information / service provider only needs very simple operation. The writing document is similar, typically versioning ... It is very convenient to use browser, not to care, what is the browser, what operating system ... You can view the information intermediate link to the user. Inadequateness: It is known that the browser is equivalent to the display module, defining the document format on the server, is displayed on the client, but it is only limited to the plane, there is a lack of good support for 3D information, of course, there is also a VRML. Define 3D information, but what is the current application? The main reason is that the parsing engine is too different, and VRML is slow to develop due to the use of text format: the planar capacity will expand, three-dimensional will be great, 10 years, the online game of the C / S architecture will die, replaced by B / S architecture running in the browser, whether it is flat or 3D game