1. 
   MAC Address
   Uniquely identifying hardware serial number, details ...
   Found op http://www.cryer.co.uk/glossary/m/index.htm
   
   
2. 
   MAC address
   Media Access Control address is a unique numeric identifier assigned to each device connected to an Ethernet network. It is used for data transmission and security functions.
   Found op http://www.youngco.com/young2.asp?ID=4&Type=3
   
   
3. 
   MAC address
   The hardware address of a device connected to a shared network medium. See also Media Access Control.
   Found op http://foldoc.org/MAC+address
   
   
4. 
   MAC address
   A Media Access Control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment. MAC addresses are used for numerous network technologies and most IEEE 802 network technologies, including Ethernet. Logically, MAC addresses are us...
   Found op http://en.wikipedia.org/wiki/MAC_address
   
   
5. 
   MAC Address
   The hardware address of a device connected to a network. In Ethernet, the Ethernet address.
   Found op http://www.nacs.uci.edu/network/network-glossary.html
   
   
6. 
   MAC layer address
   (NETWORK GLOSSARY) Refer to hardware address or physical address.
   Found op http://www.instrument-net.co.uk/newworkglossary.html
   
   

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