The origin of the membrane voltage is the same in nerve cells as in muscle cells. In both cell types, the membrane generates an impulse as a consequence of excitation. This impulse propagates in both cell types in the same manner. What follows is a short introduction to the anatomy and physiology of nerve cells.
ARCHIVED: What is Ethernet? Ethernet (the name commonly used for IEEE 802.3 CSMA/CD) is the dominant cabling and low level data delivery technology used in local area networks (LANs). Following are some Ethernet features: Ethernet transmits data at up to ten million bits (i.e., 10 megabits) per second (10 Mbps).
First off, Ethernet is full-duplex and twisted-pair. That's to say that each computer/switch can transmit down the wire at the same time. To make this simple, each wire goes one way. Twisted-pair is a technique for ensuring that the signal that's transmitted down the wire actually gets there cleanly.