Computing - Connectivity

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What is meant by a physical connection?
Connecting two devices using a cable
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What is meant by a non-physical connection?
Wireless communication
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What are the features of a coaxial/twisted pair (TP) cable?
A pair of wires twisted together to take the signals
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What factors should you consider when deciding on a choice of cable?
Performance and cost
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How does a fibre optic cable work?
By sending light beams down a fine glass filament
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What is the biggest advantage of using fibre optic over copper cable?
Rates of data transmission are far greater
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Why has wireless become a popular way of connecting devices?
Because it removes the restrictions placed in location of devices because of the position of the cable.
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What are the advantages of wireless connectivity?
Wireless communication can be used anywhere within the wireless footprint.
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What are the disadvantages of wireless connectivity?
Control over who can access data is very difficult and the high intensity radio signals used may cause health problems.
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What are the different forms that wireless communication might take?
Radio communication, microwave/infra-red communication, satellite communication
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How can the effectiveness of wireless be measured?
Thee rate at which data can be sent along the medium
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What is bandwith?
The limit to the number of different signals that can be sent at the same time before they do interfere with each other
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Other cards in this set

Card 2

Front

What is meant by a non-physical connection?

Back

Wireless communication

Card 3

Front

What are the features of a coaxial/twisted pair (TP) cable?

Back

Preview of the front of card 3

Card 4

Front

What factors should you consider when deciding on a choice of cable?

Back

Preview of the front of card 4

Card 5

Front

How does a fibre optic cable work?

Back

Preview of the front of card 5
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