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NETWORKS (Network Devices (Routers (Each computer linked is given an IP…
NETWORKS
Network Devices
Routers
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When linked, data from one network is safely stored together in the connected network.
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Network interface cards
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It prepares the data for sending, it sends the data, and it controls the data put into each network.
Hubs
Enables networks to share files and hardware, like printers.
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Switches
Work the same way as Hubs, only more intelligently, scanning each data point before transferring it to another.
Bridges
Used to connect LANs together, increasing the amount of data on them.
Modems
Modems transfer data into sound, enabling the data to be used on telephones, for example.
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Types of network
WAN
In lots of different buildings, countries, etc
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Covers a large geographical area (cities, countries, etc)
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WLAN
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Disadvantages
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There can be interference from other electrical and electronic equipment used in the same building and this can disrupt the wireless connection.
WLAN stands for wireless local area network and means a LAN where the computers are able to communicate with each other wirelessly. It is a type of network you have in your home where several computers are all able to access the internet wirelessly at the same time
LAN
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Uses cable, wireless, infra-red and microwave links which are usually owned by the organisation
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