A greater understanding of communications networks -- including a little comparative history -- will increase understanding of modern computer networks and networking basics.

Description Data communication basics, Telephone, cellular, cable and computer networks, Layered network architectures, models, and protocols, Switching, routing, flow control, and congestion control, ...

The receiving computer reverses the process, de-encapsulating the data at each layer with the header information directing the operations. Then, the application finally uses the data.

The trend toward global competition is increasing the importance of international data communications networks. Indeed, many executives believe such networks are critical to their company's future ...