Layers 7 through 4 are geared more to the application than the lower layers, which are designed to move packets from one place to another no matter what they contain. Layer 5 provides coordination.

A network topology is the basic design of a computer network. It is very much like a road map. It details how key network components such as nodes and links are interconnected. A network's topology is ...

Learn the fundamentals of the OSI model for computer networking in 100 seconds ...

In the late 1970s there were a host of companies that dominated the computer market before the introduction of the IBM PC. One of these was Ohio Scientific or OSI. [BradH] has an OSI Model 300 ...

See CSMA/CD and OSI model. Mainframe access methods, such as IBM's TCAM and VTAM, transfer data between a host computer and remote terminals. These routines place the data into frames with ...