MAC address

A MAC (Media Access Control) address is a unique identifier assigned to a device's network interface, such as a computer or smartphone, allowing it to be recognized within a local network. Think of it as a device's digital fingerprint—it helps other devices know where to send data. MAC addresses are assigned by the manufacturer and are typically fixed. They are used primarily for communication within the same network, ensuring data reaches the correct device. Unlike IP addresses, which can change, MAC addresses remain constant and are essential for network management and security.