1. 1.4
Connectivity Methods

2. 1.4
Connectivity Methods

3. 1.4
Connectivity Methods

4. 1.4
Connectivity Methods B A

5. 1.4
Connectivity Methods B A

6. 1.4
Connectivity Methods B A

7. 1.4
Connectivity Methods B A

8. 1.4
Connectivity Methods B A

9. 1.4
Connectivity Methods B A

10. 1.4
Connectivity Methods
Copper
electricity
Fibre
light
Wireless
waves

11. 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…

12. 1.4
Connectivity Methods
Copper

13. 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…

14. 1.4
Connectivity Methods
Fibre Optic Cable

15. 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…

16. 1.4
Connectivity Methods
Wireless

17. 1.4
Connectivity Methods
Wireless

18. 1.4
Connectivity Methods
Wireless
Line of sight
Photo detector
Laser

19. 1.4
Connectivity Methods
Wireless

20. 1.4
Connectivity Methods

21. 1.4
Connectivity Methods