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networks unit 3 - Coggle Diagram
networks unit 3
hardware
Specialist hardware is used to construct networks, such as:
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A gateway joins together two networks that use different base protocols, e.g. links a LAN to WAN.
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A bridge joins together two networks that use the same base protocols, e.g. links LAN to LAN.
distvantages
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If the server is down, all workstations on the network are affected
Initial cost of servers, communication devices, etc. can be expensive
disadvantages
If any of the computer systems fail, the ring is broken and data cannot be transmitted efficiently
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Because nodes are wired together, to add another you must shut down the network
advantages
The transmission of data is simple as packets travel in one direction only, so no collisions.
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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.
