In simple words, MAC is the address of your computer/mobile or any device, assigned by its manufacturer.
you can go to run —> then type command prompt or cmd and press enter.
Now type ipconfig /all and press enter.
you will come across some results, look for Ethernet adapter Local Area Connection and from there you will get to know about your Physical/MAC address
If you look at the image of this post, you can see the MAC address of your computer being pointed by an arrow. The Physical address above it is your wifi’s MAC address and the Physical address below is the physical address of your bluetooth
A media access control address, MAC is a unique identifier which is assigned to network
interfaces for communications on the physical network segment. MAC addresses are used as a
network address for most IEEE 802 network technologies, including Ethernet and WiFi.
MAC addresses are assigned by the manufacturer of a network interface controller (NIC) and
are stored in its hardware, such as the card’s read-only memory or some other firmware
mechanism. If assigned by the manufacturer, a MAC address usually encodes the
manufacturer’s registered identification number and may be referred to as the burned-in
address (BIA). It may also be known as an Ethernet hardware address (EHA), hardware
address or physical address.