The Windows ipconfig command displays the following information: BC-5F-F4-7B-4B-7D What term describes this, and what information can usually be gathered from it?

Machine Access Control (MAC) addresses are the hardware address the machine uses for layer 2 communications. The MAC addresses include an organizationally unique identifier (OUI), which identifies the manufacturer. MAC addresses can be changed, so this is not a guarantee of accuracy, but under normal circumstances you can tell what manufacturer made the device by using the MAC address.