MAC address (Media Access Control address)
In a local area network (LAN) or other networks, the MAC (Media Access Control) address is your computer’s extraordinary equipment number. (On an Ethernet LAN, it’s equivalent to your Ethernet address.) When you’re associated with the Internet from your computer (or host as the Internet convention considers it), a correspondence table relates your IP address to your computer’s physical (MAC) address on the LAN.
The MAC address is utilized by the Media Access Control sublayer of the Data-Link Layer (DLC) of telecom conventions. There is an alternate MAC sublayer for each physical gadget type. The other sublayer level in the DLC layer is the Logical Link Control sublayer.