What is the MAC, Hardware, Physical or Ethernet address of my computer?
The MAC, Hardware, Physical, and Ethernet addresses all refer to the same piece of information about your computer. This address is a series of six pairs of hexadecimal digits that identify an Ethernet network card. This information will typically appear in the format similar to 00:A0:E4:F2:A7:98. Some systems use hyphens instead of colons, and some drop leading zeros in each hex pair.
