(Browser) Browser/Server (B/S): Based on the WAN, for different user groups, low overhead, easy to upgrade, direct browser access
(Customer) Client/Server (C/S): based on a local area network, safe, oriented to fixed users, expensive, difficult to upgrade, and need to install an app
B/S structure is the trend of future development:
1) C/S mode: It is the client/server (Client/Server) mode, which mainly refers to traditional desktop-level applications. For example, the information management system we often use
2) B/S mode: it is the browser/server mode, which mainly refers to web applications, like the e-commerce sites you mentioned, such as Taobao, Alibaba, etc.
3) Compared with C/S mode applications, the biggest advantage of B/S mode is that the client can run as long as it has a browser. The C/S mode application program needs to be installed on the client side, and it is not convenient to upgrade. The B/S mode application is always the latest version for the client. C/S mode applications can use the client's operating capabilities to reduce the pressure on the server.