hardware (UTP) Normal telephone wire (in the USA). It may
be used for computer to computer communications, e.g. using a
standard "full-spec" Ethernet cable. It comes in five
"catagories":
cat. wires transmission
1 two voice no data (telephone cable)
2 four data up to 4 Mbps
3 four data up to 10 Mbps
4 four data up to 16 Mbps
5 four data up to 100 Mbps
(2003-07-04)