TCP (Transmission Control Protocol)

Transmission Control Protocol (TCP) is a core internet protocol that ensures reliable data transfer between devices. It breaks data into smaller packets, sends them over the network, and then reassembles them at the destination. TCP checks that all packets arrive correctly and in order, resending any lost or corrupted data. Think of it as a disciplined courier that guarantees your message arrives intact, complete, and in the right order, enabling smooth communication between computers and devices over the internet.