4. The Federal Government is thinking of rolling out a national broadband network (The NBN). Research the NBN and find out:
National broadband network is an initiative by the Australian government to give accces to high speed broadband to all Australians.
a. what method of delivery it will use
the method od delivery that they are going to use it optical fibre. Using light to carry information through thin glass or plastic.
b. the expected speed
The speed ot the NBN is expected to be 1 gigabit per second. The speed is similar to downloading a one gigabyte movie in 1minute and 20 seconds.
c. the expected costs
the government is expected to spend up to $43 billion.
5. Do you think Australians should invest in The NBN? Justify your answer.
Yes because it is a way of connecting people right across the country and possibly the world. It gives people the access to high speed internet access at a ‘cheap’ price according to the government. It could have many educational benefits and could improve the standards of teaching. It also provides high speed internet for online gamers who use LAN to connect and verse stheir opponents in games.
Tuesday, July 26, 2011
27/7/2011 What is Broadband ... again (II)
3. Discuss the advantages and disadvantages of each method.
Wireless
Advantages :
-Can acces the interntet almost anywhere.
-Easiter to access and less hassle connecting,.
Disadvantages
-Speed is relatively slow and lag.
-Internet security is relatively low. And Data is sensitive.
-Cost is expensive for the amount of data given to a customer.
Cable Advantages
-Speed – cable broadband is generally faster
-Telephone line is not interfered with when phone calls and such are incoming.
Disadvantages
-Modem needs to be purchased when connecting to cable internet.
-Reception issues – if there are too many users online at the same time then it slows/lags the internet. Also, users who are further away from the ISP then there is fairly bad connection.
-There’s usually a limit to the amount of data available to the user.
-Cost to install cable can be expensive if there is no existing cable is used for cable TV for example.
ADSL
ADVANTAGES
-Speed is relatively fast and is decent for households.
-ADSL like cable broadband does not interfere with the phone lines, and there is no need to call in for internet connection like the precious dial up internet.
-The cost is fixed because you pay for the amount of data rather than the duration of being on the internet.
Diadvantages
-The signal is not the best because the speed of the internet isn’t always consistent. Those living further ay rom the service provider will have a weaker signal compared to those who are living closer to the service provider.
-Speed – because of this signal issues speed is effected if you live further away from the internet service provider.
Fibre Optic
Advantages
-Faster high speed internet with more download limit.
-does not require a phone line.
-Signals don’t become weaker as you move away from your internet service provider. Provides a consistent reliable connection even if you live far away from the internet service provider.
-Generally cheaper and more durable.
-Increased data security and are not affected by electromagnetic radiation.
-non-flamable, because no electricity is passed through the optical fibres there is no danger.
Disadvantages
-cables could be cut or damaged, so light rays transmitting the information is not sent fast or efficiently.
-Fibre optic cables are more fragile than electrical wires
Wireless
Advantages :
-Can acces the interntet almost anywhere.
-Easiter to access and less hassle connecting,.
Disadvantages
-Speed is relatively slow and lag.
-Internet security is relatively low. And Data is sensitive.
-Cost is expensive for the amount of data given to a customer.
Cable Advantages
-Speed – cable broadband is generally faster
-Telephone line is not interfered with when phone calls and such are incoming.
Disadvantages
-Modem needs to be purchased when connecting to cable internet.
-Reception issues – if there are too many users online at the same time then it slows/lags the internet. Also, users who are further away from the ISP then there is fairly bad connection.
-There’s usually a limit to the amount of data available to the user.
-Cost to install cable can be expensive if there is no existing cable is used for cable TV for example.
ADSL
ADVANTAGES
-Speed is relatively fast and is decent for households.
-ADSL like cable broadband does not interfere with the phone lines, and there is no need to call in for internet connection like the precious dial up internet.
-The cost is fixed because you pay for the amount of data rather than the duration of being on the internet.
Diadvantages
-The signal is not the best because the speed of the internet isn’t always consistent. Those living further ay rom the service provider will have a weaker signal compared to those who are living closer to the service provider.
-Speed – because of this signal issues speed is effected if you live further away from the internet service provider.
Fibre Optic
Advantages
-Faster high speed internet with more download limit.
-does not require a phone line.
-Signals don’t become weaker as you move away from your internet service provider. Provides a consistent reliable connection even if you live far away from the internet service provider.
-Generally cheaper and more durable.
-Increased data security and are not affected by electromagnetic radiation.
-non-flamable, because no electricity is passed through the optical fibres there is no danger.
Disadvantages
-cables could be cut or damaged, so light rays transmitting the information is not sent fast or efficiently.
-Fibre optic cables are more fragile than electrical wires
Sunday, July 24, 2011
Term Three : The World of Multimedia
Second lesson of ISt for the term. Working of word be cause blogger doesn't seem to be working for me. I will be posting two tasks at the same time,once completed.
Monday, July 18, 2011
19-7-2011 What is broadband ...... again. (I)
1. What is broadband?
Broadband is the process of communicating through the use of different frequencies to send information to one place to another. Broadband is most commonly known as the 'internet' and is faster than dial up.
2. Outline the methods of delivery of broadband (wireless, cable, ADSL and fibre)? Identify the speed of each method.
Wireless Broadband : wireless broadband is when frequencies are being sent via radio waves. Wireless broadband is accessed through various hotspots – where the connection of the wireless is at its strongest.
Cable Broadband : made from material which increases the bandwith limits. The increase of bandwidth means that three is faster internet.
SPEED : 10000/128kb depending which internet server is chosen.
ADSL (Asymmetric Digital Subsriver Line) technology that uses a pre existing unused portion part of a phone line that sends data transmissions. 256 kilobits per second.
Fibre Optic –trapping light and using light to and the total internal refraction to transmit information through thin flexible wires.
Broadband is the process of communicating through the use of different frequencies to send information to one place to another. Broadband is most commonly known as the 'internet' and is faster than dial up.
2. Outline the methods of delivery of broadband (wireless, cable, ADSL and fibre)? Identify the speed of each method.
Wireless Broadband : wireless broadband is when frequencies are being sent via radio waves. Wireless broadband is accessed through various hotspots – where the connection of the wireless is at its strongest.
Cable Broadband : made from material which increases the bandwith limits. The increase of bandwidth means that three is faster internet.
SPEED : 10000/128kb depending which internet server is chosen.
ADSL (Asymmetric Digital Subsriver Line) technology that uses a pre existing unused portion part of a phone line that sends data transmissions. 256 kilobits per second.
Fibre Optic –trapping light and using light to and the total internal refraction to transmit information through thin flexible wires.
Subscribe to:
Posts (Atom)