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ICT Networks Topic by Mind Map: ICT Networks Topic
5.0 stars - 1 reviews range from 0 to 5

ICT Networks Topic


Internet is largest WAN

Wireless Local Area Network

uses radio signals to connect

uses a wireless switch/router to send and recieve data

Huge cables and satellite links up network

Provides transport links for information held on WWW (files are stored on WWW, internet transports links to files stored on WWW)

more convenient as there is fewer wires

Analogue& Digital


uses modulations in a signal to convey information e.g sound


Uses a stream of 0's and 1's


A Modem is a device that modulates(converts) the analogue signal down the telephone line, to a digital signal so that the computer can understand the information from the telephone line, of the internet. Then when the computer wants to send information to the internet, the modem demodulates the signal into analogue so that the computer can send it down the phone lines.

Cables connected to a a file server are called 'workstations or clients

Type of network


Local Area Network, is over a small physical area, most information is shared and stored on a file server, Need a username and password to access, e.g. School network is a LAN


Wide Area Network, large physical area, Allows easier and cheaper communication, than phone



all of the computers are connected to one central cable, called a bus

can be slow as all data goes down one cable

if cable breaks will not work

simple and inexpensive to set up

easy to expand

if one computer breaks the network will still work


connects 2 or more network topologies together


every workstation is connected to a central device, a hub or a switch

can be slow as data has to pass through hub

If central device breaks it wont work

most widely used type of topology


The information travels 1 way only

expensive on a large scale

if one computer breaks down or one cable is damaged, the whole network breaks

Internet & Intranet



Anyone can access it

Anyone can put information on it

can access inappropriate information


Smaller organisations website

Only employees have access

Has standard company documents, newsleter, Job Vacancies

General Informatiom

A network is two or more computers connected together so they can exchange data.

Allows people to share files and printers.

The computers can be linked up by cables or radio waves (wifi)

A Computer that is no connected to a network is called a 'Standalone'