PowerCert Animated Videos offer clear and concise descriptions of big principles in computer system hardware and networking. I described them relatively frequently when I was teaching an intro to networking course last year..

Applications for Education.
Many readers of this blog site will never ever require to understand what MAC address is or how it fits into the networking process. It is good to know and can valuable to know how to find it if your IT administrator ever asks for it.

This video is one to bookmark and possibly use as a review resource or video-based lesson in a tool like Edpuzzle if you do teach networking.

As the title states, the video describes what a MAC address is, how its composed, where to find it, and its function in networking. The video also does a great task of explaining the essential difference between MAC addresses and IP addresses.