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Unit 3- Networks, Hardware, Network Topologies (the layout of computer…
Unit 3- Networks
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Disadvantages
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Buying a server, communication devices, etc may be expensive
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Hardware
Switches
Analyses each packet of data, sends to intended recipient
Hubs
Copies all packets of data, sends it all over the network
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Gateways
Connects networks that use different protocols, eg LAN to WAN
Bridge
Connects networks that use the same protocol, eg LAN to LAN
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Transmission of Data
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Packet switching
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Data split into packets
Sent in order, not always received in order
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