Network
Also known as: computer network, LAN, WAN
A group of interconnected computing devices that can communicate and share resources with each other. Nearly all modern computing depends on networks — from email to streaming to cloud storage.
💡 Intuition
A network is like a postal system for computers — it connects them so they can send and receive information.
Core Idea
Networks enable communication and resource sharing. They range from local (LAN) to global (internet).
🔬 Example
🎯 Why It Matters
Nearly all modern computing depends on networks — from email to streaming to cloud storage.
⚠️ Common Confusion
The internet is a network of networks, not a single thing. No one entity owns or controls it all.
Related Concepts
Prerequisites
How Network Connects to Other Ideas
To understand network, you should first be comfortable with computing system. Once you have a solid grasp of network, you can move on to internet, packet and protocol.
Go Deeper
Frequently Asked Questions
What is Network in CS Thinking?
A group of interconnected computing devices that can communicate and share resources with each other.
Why is Network important?
Nearly all modern computing depends on networks — from email to streaming to cloud storage.
What do students usually get wrong about Network?
The internet is a network of networks, not a single thing. No one entity owns or controls it all.
What should I learn before Network?
Before studying Network, you should understand: computing system.