The four-layer diode was the key to William Shockley's plan to revolutionize AT&T's phone system. It was a great device in theory, but not in practice -- at least not at the time when Shockley ...

In dealing with a strictly TCP/IP network, you can take a simplified approach. The Department of Defense (DoD) modeled such a network model in four layers and related it directly to the OSI model. In ...