1.4 The Internet
- Created by: Henrylane1408
- Created on: 29-03-18 17:20
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- 1.4 The Internet
- Interconnected networks, scanning the world
- Networks are made when computers and other devices are connected
- Internet now conveys information via sound and video
- Internet may be considered to be a number of networks, each joined to other networks
- Internet connections
- Copper-cable based on electrical conductivity
- Optical fibre uses strands of glass and data is transferred as pulses of light
- Characteristics
- Speed of data transfer differ for internet connections
- Copper cable has a low bandwidth and is slower
- Range is the distance over which a signal can be sent on each type of connection
- Satellites send signals from space
- Microwaves send to devices that are in direct line of sight
- Speed of data transfer differ for internet connections
- Interconnected networks, scanning the world
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