NetWorks
 ********
  
 Ethernet is the most wide used network protocol today,
 it's not as good as TokenRing but in most cases it will do.
 but lets start from the begining what's Ethernet?
 well Ethernet is a locat network that connects
 several computers and allow access from each of them
 to the other computers, it also enables access to a
 server or a communial printer.
 Ethernet works like this, imagine a room full of people
 several of them want to say something but they can't talk
 all of them together because it will be gibrish or there
 will be collisions, so if no body else is talking at that 
 moment any one person can talk, and while that person is 
 talking nobody else is allowed to talk, until that person
 finished his speech. well, but what happens if two people
 start talking exactly at the same time, then they both shut
 up, and wait for some delay time each has a little different
 delay time, so when the delay of one of them is over the other
 is still waiting, but if there are many computers connected to the
 network then there are many collisions and it must be fixed by
 other means (like a hub, or sepearating the network to two 
 networks), Ethernet is cheaper then TokerRing and almost as 
 reliable.
 TokerRing is another network protocol it's almost collisions free
 but it's much more expansive and not much in use in these days,
 TokerRing as it's name states is based on a token, imagine a group
 of computers connected together in a circle something like this:

                     comp1 ----- comp2 ----- comp3
                    /                             \
                  comp8                          comp4
                    \                             /
                     comp7 ----- comp6 ----- comp5

 now imagine an imaginary token running inside that circle and when
 ever a computer want's to use the network it waits for the toker to
 reach him, and when it does, it hold on to it until it ends it's message,
 while the token his held by one computer the others can't transmit, so 
 when the copmuter has released the token it keeps rolling until another 
 computer holds it and so on.
 well hope you now know a little more about networks but these are only 
 the basics so keep on reading and learning...
   
 yours
   WiseGuy

please visit my website:http://go.to/wiseguy

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