MAC address is not unique to Apple computers. MAC address stands for media access control address, it is also called a physical address and is a unique identifier for your device connecting to a network.
IP Address (Internet Protocol Address) is a unique string of numbers separated by periods that identifies each computer over a network.MAC Address and IP Address
You will need to know how to obtain your MAC address to register a device on the wired network at FIT (Dorm Residents Only). You may be asked to provide an IP Address when reporting any problems connecting to the FIT Network to TechHelp.