TCP/IP
The Transmission Control Protocol/Internet Protocol, commonly known as TCP/IP, is a suite of communication protocols that forms the very foundation of the internet and most private computer networks. Think of it as the detailed instruction manual that allows different types of computers and network devices to "talk" to each other and exchange information seamlessly. It dictates how data should be broken down into smaller pieces, called packets, how these packets should be addressed and sent across networks, and how they should be reassembled at their destination. This protocol suite is what makes it possible for you to browse websites, send emails, stream videos, and engage in countless other online activities.