Internet users
Intranet
Network connections (Wired connections)
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Private network which can only be accessed by specific users
Higer security as users need to log in
Usually within an organisation
Internet
Internet service Providers (ISPs) which are organisations that provide services for accessing and using the internet
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Global network
Lower security as users can access without logging in
Open network which can be accessed by anyone
Wide area networks (WANs) cover cities and countries
Local Area Networks(LAN) cover smaller areas
Data is send through cables
Usually lower cost of instillation, as cables are less expensive
Usually faster than wireless
Limited mobility, as users need to be connected using cables and access points
Wired communications
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Network devices
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Wireless access point (WAP) connect multiple devices to a computer
Switch connect multiple computers and devices to a network
Network interface card Allows a computer to connect to a network to receive and transmit data
Router connects different networks and directs the data flow between them
Modemn converts data from one form to another in order to establish a connection between a network and the internet