Computing CG3

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Data transmission
When data is transmitted from one device to another, it is sent as a large number of databits
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Parallel Transmission
A Number of databits (8,16,32) can be sent at the same time along a number of paths. | Used internally when data is sent along the buses | Faster than serial transmission | Can only be used for sort distances
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Serial Transmission
Bits are sent after another along a single wire. | Used for greater distances | Can be fast on fiber optic cables
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Simplex
Transmission of data can be in one direction only - eg radio
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Half Duplex
Transmission can be in both direction but only one direction at a time - Walkie talkies
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Full duplex
simultaneous transmission of data in both directions is possible - eg telephone
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Cicuit Switching
A number of switches are set to create a path along which data can be sent.
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Packet Switching
In Packet Switching system data messages are split into packets of fixed size
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Other cards in this set

Card 2

Front

A Number of databits (8,16,32) can be sent at the same time along a number of paths. | Used internally when data is sent along the buses | Faster than serial transmission | Can only be used for sort distances

Back

Parallel Transmission

Card 3

Front

Bits are sent after another along a single wire. | Used for greater distances | Can be fast on fiber optic cables

Back

Preview of the back of card 3

Card 4

Front

Transmission of data can be in one direction only - eg radio

Back

Preview of the back of card 4

Card 5

Front

Transmission can be in both direction but only one direction at a time - Walkie talkies

Back

Preview of the back of card 5
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