ICT TOPIC 3 - HOME AND PERSONAL COMMUNICATION SYSTEMS

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Give 2 uses of satellite communication
Used for communication across continents - Uses radio signals to send data - Data signals are beamed up to a satellite in orbit and then sent back down to a satellite dish in another continent
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Give 2 advantages of wireless communication
You're not restricted as to where you can work - You can work whilst on the move - There are fewer wires to trip over - Easier to keep a work area clean - No costs for fixing sinking wires
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Give 2 disadvantages of wireless communication
There are dangers of hackers reading messages - There are areas where you cannot get a wireless network - There may be a danger to your health
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Name the two modems that allow a computer to connect to the internet
A dial-up and cable/broadband
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Why is dial-up interent bad?
There is a slow connection and you can't use the telephone at the same time
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Give three uses of broadband
Use a phone at the same time - download files at a high speed - watch online videos - Use a web camera - Listen to online radio - Watch TV programmes - Surf the internet quickly
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Give three things that a router allows
It enables a network to be connected to the internet - Enables several computers to share the same internet connection - Allows wireless internet connection
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Give three examples of where blue tooth is used
Wireless keyboard - Wireless headset - Sharing music and short videos - Printing photos from a phone or camera - Listening to music using wireless earphones
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Two advantages of bluetooth
No wires are needed - You can synchronize devices - Very easy to use and no new software is needed
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Two disadvantages of bluetooth
Can only be used over short distances - small bandwidth - There are health concerns
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Give 2 jobs a GIS can do
Determine how far it is from one place to another - See a birds eye view of your house and its surroundings - Plan the quickest route to somewhere - View the surrounding when you go on holiday or to somewhere new
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2 example of a GIS
Satellite navigation systems - Google Earth - Multimap - The AA - The energy saving trust
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Give two advantages of GIS
They reduce fuel consumption - can arrive on your destination on time as you can be warned about roadworks - Can save money by using the shortest route - Can choose hotels based on their distance from the beach
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Give two disadvantages of GIS
Can send you down very small and windy roads - Can be difficult to use - The information can be out of date - Can cause accidents if you input data whilst driving
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Other cards in this set

Card 2

Front

Give 2 advantages of wireless communication

Back

You're not restricted as to where you can work - You can work whilst on the move - There are fewer wires to trip over - Easier to keep a work area clean - No costs for fixing sinking wires

Card 3

Front

Give 2 disadvantages of wireless communication

Back

Preview of the front of card 3

Card 4

Front

Name the two modems that allow a computer to connect to the internet

Back

Preview of the front of card 4

Card 5

Front

Why is dial-up interent bad?

Back

Preview of the front of card 5
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