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Unit 3- Networks - Coggle Diagram
Unit 3- Networks
Bus
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The computers are connected to a single cable on which data can be sent, called the bus
The bus has terminators on each end, which are needed to close each end of the cable
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As the packets arrive at each computer system, it checks the destination address contained in the packet to see if it matches its own
If the address does not match, the computer system ignores the packet. If the address of the computer system matches that contained in the packet, it processes the data
Star
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Disadvantages
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Extra hardware required, such as a hub
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Ring
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Each node connects to exactly two other nodes, providing a single pathway for signals through each node
packet switching
packet switching - new method of transferring data. It splits the data into packets before transmission, packets are then sent in order but might arrive out of order. Each packet can take a different route to its destination, data is then reassembled at the destination.
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