What is a Network
A network connects two or more computers so they can share information. Networks let computers send files, share printers, and talk to each other quickly. Your school computer lab is likely one big network.
🔌 Computers Connected in a Network
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🖥️ in the middle is the central connector (router)
Types of Networks
| Network Type | Covers |
|---|---|
| LAN (Local Area Network) | One building, like a school or home |
| WAN (Wide Area Network) | A large area, like a whole country |
| Internet | The biggest network, connecting the whole world |
Why Networks Are Useful
- Share one printer between many computers
- Send files between computers instantly
- Play multiplayer games with friends
- Access the same files from different computers
Router — The Traffic Controller
A router is a device that connects all computers in a network and directs information to the right place. Without a router, computers in a network cannot find each other.
🔑 Key Terms
- Network – A group of connected computers that share information
- LAN – A network that covers a small area, like one building
- Router – A device that connects computers and directs data traffic
✏️ Exercise
- What does LAN stand for?
- Name two benefits of using a network.
- What device directs data to the right computer?
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