Re: MAC vs. Mac
Totally agree on MAC vs Mac, but...
MAC = Medium (singular) Access Control, which is a conceptual component of a network interface. It /has/ an address, not /is/ an address. And that MAC address is better termed a link-layer, physical or hardware address; "network address" is somewhat ambiguous but usually means eg an IP address or (for IP networks) a node address with the host bits masked off.