TCP/IP stack

The TCP/IP stack is a set of rules that allows computers to communicate over the internet. It breaks down data into smaller packets, routes them through networks, and ensures they arrive correctly at the destination. The stack has layers, each performing specific functions: the internet layer sends packets to the right places, the transport layer manages connections and data flow, and the network access layer handles hardware details like cables and Wi-Fi. Together, these layers enable reliable, seamless communication between devices worldwide.