Connectivity Methods 14 Connectivity Methods 14 Connectivity Methods 14 A B Connectivity Methods 14 A B 14 A Connectivity Methods B Connectivity Methods 14 A B Connectivity Methods ID: 729890
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Copper
Fibre
Wireless
electricity
light
wavesSlide11
Used for decades
e.g. phone lines
Because good conductorCarries data as electric signal
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Copper
Also used in LANS
eg
school network
But affected by interference
That impacts range/distance
And use special cables…Slide12
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CopperSlide13
Tubes of glass with plastic coat
Laser sends pules of
lightHigh speedHigh bandwidth
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Fibre
Optic Cable
Used for home fibre
Also undersea cables
But installation is more costly…Slide14
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Fibre
Optic CableSlide15
Uses waves
But remember Science!
Electromagnetic SpectrumDifferent types of waves
Wavelength & frequency
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Wireless
So lot of choice to carry data
Options depends on…
Range, cost, data transfer speed…Slide16
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WirelessSlide17
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WirelessSlide18
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Wireless
Laser
Photo detector
Line of sightSlide19
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