Topic 1: What is a Network?
A network is a group of connected computers that can share information, files, and resources with each other.
Core concept
Computers in a network are connected using cables or wireless signals, allowing them to communicate and share data.
How it works
Networks let us share files, printers, and internet connections between multiple computers, saving resources and effort.
Why it matters
A Local Area Network (LAN) connects computers within a small area, like a school or office building.
Key detail
Networks make it easier to communicate, share resources, and work together on projects across multiple computers.
Exam highlight
Key diagram

- A diagram showing 3 computers connected by lines to a central printer, labelled 'a simple network.'
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Quick notes
• A network connects computers to share information.
• Computers connect using cables or wireless signals.
• Networks let us share files and printers.
• Networks also share internet connections.
• A LAN connects computers within a small area.
• Schools and offices often use LANs.
• Networks aid communication and collaboration.
• They help share resources efficiently.