DAY10 Python network programming socket programming

One, client/server architecture

1.C/S architecture, including:

1. Hardware C/S Architecture (printer)

2. Software c/S Architecture (Web Service) "Qq,ssh,mysql,ftp"

2.C/S the relationship between the architecture and the socket:

We learn the socket is to complete the C/S architecture development

3. Pre-knowledge

Note A complete computer system is composed of hardware and software, and software is divided into: operating system and application software.

Communication between the Internet must follow the uniform norms, this unified specification is the agreement, like the world's standard of communication is English, the Internet Protocol is the computer industry of English, all computers can follow the unified standard to send and receive information to complete the communication!

4. Two sets of protocols in the Internet world:

1. Academia: OSI seven-layer model

2. Industry: TCP Four Layer model

Compare the two:

DAY10 Python network programming socket programming