How TCP Connections Work?

TCP connections are like a phone call between two friends who want to share stories.

Imagine you and your best friend are talking on the phone. You both need to agree on when to start talking, how to send messages, and when to say goodbye. That’s what TCP does, it helps computers talk to each other by setting up a clear way to send and receive information.

Before you can chat, you need to say “Hello!” and wait for your friend to reply. This is like the handshake in TCP. The computer you're using (let's call it Computer A) sends a message saying “I want to talk,” and the other computer (Computer B) replies, “Okay, I’m ready.” They both agree on how fast they’ll send messages, this is called the connection speed.

Once they're connected, you can start telling stories, just like sending messages. Each message is a little piece of data. You and your friend take turns talking, making sure each word gets heard clearly. If someone misses a word, they ask for it again, that’s how TCP keeps everything clear and correct.

When the story ends, you both say “Goodbye!” to close the call. That’s like ending the TCP connection. Now your friend can talk to someone else, and you can go play with your toys!