What is TCP?

TCP (Transmission Control Protocol) is like a perfectionist delivery manager.

It doesn’t just send data it obsesses over getting everything right.

Here’s what TCP actually does:

• First, it creates a connection (like saying “Hey, ready?”)
• Then, it sends data in small packets
• It tracks every single packet
• If something is missing, it says: “Send that again.”
• Finally, it rearranges everything in the correct order

End result?
You get exactly what was sent. No more, no less.

How TCP Works (In Real Flow)

Think of it like this:

1. Connection Setup → “Let’s start communication”
2. Data Transfer → Sending + checking packets
3. Acknowledgement → “Got it!”
4. Resend if needed → “Missing piece, send again”
5. Close Connection → “We’re done”

This is why TCP is reliable, not just fast.

Quick Comparison

TCP is not just a protocol.

It’s the reason your digital world feels smooth, complete, and trustworthy.