![]() The MAC address functions as something like a serial number in that no two devices should ever have the same MAC address. The MAC address is used by the network interface controller (NIC) in order to identify and track data going to or from the device.įor most people, the issue of a MAC address concerns commercial devices like desktop computers, laptop computers, tablets, and smartphones. You can think of it as a “license plate” for a computer or other network-connected device. ![]() In short, every hardware device that can connect to a network of any kind, including internal devices, has a unique identifier that is the MAC address. In most cases, the MAC address is built-in to the device (sometimes called a “burned-in address” or BIA), but in some cases, the MAC address may be assigned. Sometimes written as a “Mac” address, a MAC address (pronounced “mack”) is a unique address assigned to every hardware device that connects to a network. ![]()
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