What Is a Network?
A network is the system that connects computers together. Learn the difference between LAN, WAN, and the Internet, and trace how your home connects to the world, with diagrams.
Network Articles
20 articles · in orderHow the Internet Works
The Internet connects computers worldwide using IP addresses and routers. Learn how data travels from your device to a server and back, explained step by step with diagrams.
What Is a Packet?
Packets are the small units that data is split into before traveling the Internet. Learn why data is divided, what's inside a packet header, and how packets are reassembled — with diagrams.
What Is an IP Address?
An IP address is like a street address for devices on a network. Learn the difference between global and private IP addresses, and how to check your own — with diagrams for teens.
What Is DNS?
DNS converts domain names into IP addresses. Learn why websites become unreachable when DNS stops working, and how to use DNS to speed up your browsing — with diagrams for teens.
What Is Wi-Fi?
Wi-Fi is wireless LAN technology used at home, school, and cafés. Learn how Wi-Fi works, the differences between Wi-Fi 5, 6, and 7, and how to connect — with diagrams for teens.
What Does a Router Do?
Your home router is the hub of your network. Learn what four jobs it performs simultaneously, and why rebooting it fixes so many problems — explained for teens with diagrams.
LAN vs WAN
LAN is the small network inside your home; WAN connects the whole world. Learn the difference, where the boundary is, and how to use this knowledge to troubleshoot — with diagrams for teens.
Troubleshooting a Slow Home Connection
When your home Wi-Fi feels slow, there are 5 possible locations for the problem. Learn to isolate device, Wi-Fi signal, router, ISP, and server issues step by step — with diagrams for teens.
5 Settings to Speed Up Your Wi-Fi
Five practical Wi-Fi improvements you can try at home — router placement, frequency band, channel, standard, and reboots — explained for teens with diagrams. No new plan needed.
How to Reduce Online Game Lag
Lag in Apex, Fortnite, and other online games is almost always a network issue, not a skill issue. Learn how ping, wired LAN, and server region selection reduce lag — with diagrams for teens.
Setting Up Wired LAN at Home
Learn how to improve your home network with wired LAN. Covers Wi-Fi vs. wired differences, what hardware you need, and tips for running cables between rooms — with diagrams for teens.
What Is a VPN?
Learn how VPNs (Virtual Private Networks) work — encrypted tunnels, real-world uses, and why free VPNs can be risky. A friendly guide for teens.
How to Read Internet Speed Numbers
Understand bps, Mbps, Gbps, download, upload, ping, and jitter — and learn how to objectively evaluate your home network. A friendly guide for teens.
IPv4 vs. IPv6: What's the Difference?
Learn the difference between IPv4 and IPv6 — address exhaustion, IPoE connections, and why IPv6 can speed up your home network at night. A guide for teens.
How Does a School Network Work?
Learn how school campus LANs, content filtering, MDM device management, and one-device-per-student programs work. A friendly guide for teens.
What Is 5G?
Learn how 5G differs from 4G — speed, latency, simultaneous connections, and the new possibilities low-latency wireless opens up. A friendly guide for teens.
Fiber vs. Mobile: Which Home Internet Is Right for You?
Compare fiber optic and mobile home routers (4G/5G) for home internet — speed, stability, price, installation, and how to choose based on your family's needs.
What Does a Network Engineer Do?
Discover what network engineers actually do — the 4-stage job cycle, tools they use, salary ranges, and how to start heading in that direction as a teen.
Why Networking Knowledge Pays Off in the Future
Learn why networking knowledge built during your teens pays dividends across IoT, cloud, security, self-driving, and almost every future career. Guide for teens.