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).
The original Ethernet is called Experimental Ethernet today. It was developed by Robert Metcalfe in 1972 (patented in 1978) and was based in part on the wireless ALOHAnet protocol. The first Ethernet that was generally used outside Xerox was DIX Ethernet, followed by Ethernet II. IEEE defines a 802.3 standard where the Type field is replaced by Length, and an 802.2 LLC header follows with the Type field.