LAN & WAN | 3.1 | OCR GCSE Computer Science | J277

10 flashcards

Network

A set of interconnected computers to share data and resources.

What data and resources do networks share?

- files - software - hardware

Local Area Network (LAN)

A computer network that covers a small geographical area.

Where is a LAN usually within?

- a school - a building - an office

Who is a LAN's infrastructure (devices and cables) usually owned by?

They are privately owned and managed by the people using the network.

Why is data transmission faster within a LAN?

As there is less distance for the data to travel.

Wide Area Network

A network that connects LANs over a large geographical area.

Why is data transmission slower within a WAN?

As there is more distance for the data to travel.

Who is WANs infrastructure usually shared between?

Internet service providers (ISPs) e.g. BT, Vodafone, Virgin Media

How may WANs be connected?

- Fibre optic cables - Copper telephone lines - Satellite links - Radio links