data communication protocol

A data communication protocol is like a set of rules that devices use to exchange information accurately and efficiently. Think of it as a common language and handshake that ensures messages are sent, received, and understood correctly between computers, phones, or other devices. Protocols define how data is formatted, how error checking occurs, and how devices coordinate to avoid confusion. This keeps information flow smooth and secure, whether you're browsing the internet, sending an email, or streaming a video. Essentially, protocols make digital communication reliable by standardizing the way devices talk to each other.