1.4 Connectivity Methods.

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Presentation transcript:

1.4 Connectivity Methods

1.4 Connectivity Methods

1.4 Connectivity Methods

1.4 Connectivity Methods B A

1.4 Connectivity Methods B A

1.4 Connectivity Methods B A

1.4 Connectivity Methods B A

1.4 Connectivity Methods B A

1.4 Connectivity Methods B A

1.4 Connectivity Methods Copper electricity Fibre light Wireless waves

Copper Used for decades e.g. phone lines Because good conductor 1.4 Connectivity Methods Copper Used for decades e.g. phone lines Because good conductor Carries data as electric signal Also used in LANS eg school network But affected by interference That impacts range/distance And use special cables…

1.4 Connectivity Methods Copper

Fibre Optic Cable Tubes of glass with plastic coat 1.4 Connectivity Methods Fibre Optic Cable Tubes of glass with plastic coat Laser sends pules of light High speed High bandwidth Used for home fibre Also undersea cables But installation is more costly…

1.4 Connectivity Methods Fibre Optic Cable

Wireless Uses waves But remember Science! Electromagnetic Spectrum 1.4 Connectivity Methods Wireless Uses waves But remember Science! Electromagnetic Spectrum Different types of waves Wavelength & frequency So lot of choice to carry data Options depends on… Range, cost, data transfer speed…

1.4 Connectivity Methods Wireless

1.4 Connectivity Methods Wireless

1.4 Connectivity Methods Wireless Line of sight Photo detector Laser

1.4 Connectivity Methods Wireless

1.4 Connectivity Methods

1.4 Connectivity Methods