A port is a logical endpoint for communication in a computer network, allowing devices to exchange data. In networking, ports are used to identify specific services or applications running on a device, with each port number corresponding to a particular protocol or service. For example, port 80 is commonly used for HTTP traffic, while port 443 is used for HTTPS. Ports are categorized into well-known ports (0-1023), registered ports (1024-49151), and dynamic/private ports (49152-65535). Ports can be either physical (hardware interfaces like Ethernet ports) or virtual (software-defined for communication protocols). In essence, ports help route data to the appropriate service or application within a device or network. Learn more: https://en.wikipedia.org/wiki/Port