OSI organized networking beautifully; TCP/IP connected the networks that actually existed.

The OSI and TCP/IP models are frameworks for describing how data moves through computer networks. The OSI model divides networking into seven conceptual layers, from physical transmission through applications, while the TCP/IP model uses a smaller set of layers built around the protocols of the Internet. Both separate complex communication tasks into manageable functions, but TCP/IP reflects the architecture actually used by modern networks, whereas OSI is mainly a reference model for understanding and troubleshooting. Comparing them helps show where protocols such as Ethernet, IP, TCP, and HTTP operate. They are used in computer networking, protocol development, and technical education.