Computer Networks

TCP/IP, HTTP, DNS, and network protocols

2 tutorials

2 of 2 tutorials

beginnerApr 28, 2026· 11 min read

What is a Computer Network? A Beginner's Guide to Networking in 2026

Learn what a computer network is, how data travels across the internet through layers and protocols, and how Wi-Fi, IP addresses, DNS and routers work together every time you load a webpage.

DNSInternetNetworking+2

beginnerApr 28, 2026· 10 min read

TCP vs UDP: A Beginner's Guide to the Two Core Internet Protocols

Compare TCP and UDP in plain English: how each one delivers data, when reliability matters more than speed, and why your video call uses UDP while your bank login uses TCP.

Networking ProtocolsTCPComputer Networks+2