On 05/24/2011 06:36 PM, Geoffrey wrote:
> I'm thinking Ethernet is no longer really Ethernet.
> Because they do not use Coax anymore.

You can still use 10base2 Ethernet, which is what the coax kind of 
Ethernet is called. The more modern Ethernet network is 10baseT, 
100baseT, 1000baseT, etc. These use twisted-pair cables. The trouble is 
you can't buy new network cards that support 10base2, and the coax and 
terminators are more expensive than the wiring for the more modern 
varieties. You can probably find 10base2 adapters on Ebay, but it's 
doubtful they will have PCI connectors that fit modern desktop motherboards.

You can connect two computers together using twisted-pair Ethernet with 
a crossover cable. Similar to a null-modem cable for RS-232. But you're 
limited to two, and that doesn't get you an Internet connection unless 
you connect to the Internet using a phone modem in one of the computers.

I've heard of schemes to network computers together using parallel 
ports, serial ports, and USB; but I don't know anything more about them.

Karl
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