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Unit 2 1.4 Internet access (Type of Internet access (Broadband (Range: …
Unit 2 1.4 Internet access
Types of cables
Copper (Coaxial)
Advantages:
-Cheap
-Easier to install
Disadvantages:
-Easily damaged
-Corrosion
Used at home & industry
Twisted Pair (CAT5)
Advantages:
-Cheapest for networking
-High transfer speed
Disadvantages:
-Very limited transfer
-Sensitive to interference
Used at schools, work & businesses
Fibre optic
Used at work & home
Advantages:
-Extremely high bandwidth
-Resistance to electromagnetic interference
Disadvantages:
-Fragile
-Difficult to install
Type of Internet access
Broadband
Range:
Home area network
Speed:
Ranges slow- fast
Price:
£15-30 a month
Fixed Broadband
Range changes
4G speed
Price:
$0.85
Dial-up
Range:
2400 bps - 56 Kbps
Speed:
56 kbits/s
Price:
£10-20
Fixed Wireless Satellite
Range:
Changes, 2000 bps
Speed:
25/5Mbps
Price:
£20 monthly
Satellite
Range:
The whole earth
Speed:
50 Mbps
Price:
£50 monthly
Wireless hotspot
Range:
Small room size
Speed:
1.5 Mbps
Price:
£50 monthly
Mobile:
3G/4G
Tethering
Speed:
15.1 Mbps
Price:
£7-50 monthly
Range:
Very small