03 Oct Simplified Basic Network Simplified
We speak of Digital Packet Networks. They have one job—transfer a packet of binary digital information (bits) from one point on the edge of a network to another point on the edge based on addresses contained in the packet. It is just like the postal service sending letters. The network itself is fashioned from just two kinds of things—switches and links connecting switches together, rather like intersections and roads. The weakest link is the “last mile” created from old copper telephone and cable television wiring…