Sunday, July 31, 2011
Handheld Computing
Q1. What are MID and UMPC devices? How do they differ. List at least three examples of both types of devices & include images.
The mobile Internet device (MID) is a small Internet communications unit designed to provide entertainment, information and location-based services for the consumer market (rather than the enterprise).
UMPC stands for Ultra Mobile PC, a UMPC is a mobile device that has been optimized for accessing online media and content for mobile users. UMPC devices are small enough to easily to carry, deliver long battery life for mobile connectivity, include multiple wireless connectivity options, and are also location-aware.
Differences- UMPC runs a heavy OS like vista, business-class device for enterprise users. MID is a consumer-class lifestyle device, runs a 'lightweight' OS with quick start up like Linux and it is smaller than an UMPC.
The mobile Internet device (MID) is a small Internet communications unit designed to provide entertainment, information and location-based services for the consumer market (rather than the enterprise).
UMPC stands for Ultra Mobile PC, a UMPC is a mobile device that has been optimized for accessing online media and content for mobile users. UMPC devices are small enough to easily to carry, deliver long battery life for mobile connectivity, include multiple wireless connectivity options, and are also location-aware.
Differences- UMPC runs a heavy OS like vista, business-class device for enterprise users. MID is a consumer-class lifestyle device, runs a 'lightweight' OS with quick start up like Linux and it is smaller than an UMPC.
Saturday, July 30, 2011
Dual-Core-Processor Research
A dual core processor is a CPU with two separate cores on the same die, each with its own cache. Multitasking is a method where multiple tasks, also known as processes, share common processing resources such as a how do the two work together? By having multiple processors on a single server, the tasks running on the server can be divided between the processors to allow the system has a whole to function faster.
The CPU
Q1. What is the function of the CPU?
The CPU stands for Central Processing Unit, it is capable of doing complex coding calculations to enable the computer to execute various functions and run several applications.
Q2. What was the name of the first CPU?
The first microprocessor was the Intel 4004.
Q3. Describe how the speed of CPU’s has changed.
The speed of CPUs has changed since the first CPU in 1973 to the latest that was released in 2004. It has increased from 2 MHz to 3.6 GHz
Q4. What does MIPS measure?
MIPS stands for "millions of instructions per second" and is a rough measure of the performance of a CPU.
Thursday, July 28, 2011
Broadband Research
Q5. The Federal Governement is thinking of rolling out a national broadband network (The NBN). Rsearch and find out:
A) What method of delivery it will use
B) The expected speed
C) The expected cost
A- The NBN will develop to deliver fibre broadband infrastructure. NBN Co is committed to delivering the leading edge broadband service to all Australians by leveraging the three types of technology available - fibre, fixed wireless and satellite, depending on location.
B- The NBN will connect 93 per cent of premises with fibre optic technology, capable of providing speeds of up to 1 gigabits per second.
C- Connections at 25Mbps start at $37.50/month and run up to $84.50/month for 200G of data and a 10Mpbs uplink.
Q6. The National Broadband Network that will provide the infrastructure to allow service providers to deliver superfast broadband to Australian premises. With a combination of fibre, fixed wireless and satellite, the NBN will make possible new and improved ways of connecting with one another, regardless of geography, from business and lifestyle to medical and education. In my opinion Australia should in the NBN.
A) What method of delivery it will use
B) The expected speed
C) The expected cost
A- The NBN will develop to deliver fibre broadband infrastructure. NBN Co is committed to delivering the leading edge broadband service to all Australians by leveraging the three types of technology available - fibre, fixed wireless and satellite, depending on location.
B- The NBN will connect 93 per cent of premises with fibre optic technology, capable of providing speeds of up to 1 gigabits per second.
C- Connections at 25Mbps start at $37.50/month and run up to $84.50/month for 200G of data and a 10Mpbs uplink.
Q6. The National Broadband Network that will provide the infrastructure to allow service providers to deliver superfast broadband to Australian premises. With a combination of fibre, fixed wireless and satellite, the NBN will make possible new and improved ways of connecting with one another, regardless of geography, from business and lifestyle to medical and education. In my opinion Australia should in the NBN.
Tuesday, July 26, 2011
Sunday, July 24, 2011
Broadband Research
Q3. Discuss the advantages and disadvantages of each method.
WIRELESS:
Advantages- Wireless broadband allows you to have an Internet Connection without being connected to you Internet Service Provider (ISP). It provides a variety of options for accessing Internet Services and sharing them.
Disadvantages- Significantly slower than a wired network and risk of 'outsiders' accessing your network unless robust security protocols are enabled.
CABLE:
Advantages- Connection speed is up to 100 times faster than dial up connection. You can download pictures files, software in seconds or minutes instead of hours. Online gaming is only possible using a broadband Internet access. It is convenient because the Internet connection is always on.
Disadvantages- High monthly fee compared to dial up Internet access. Not all phone wires are equipped for DSL service. May not be available in rural or remote areas.
ADSL:
Advantages-There's no need for a second phone line, as you can surf the Internet and make calls at the same time.You won't have to worry about being disconnected and re-dialing as you are always connected.
Disadvantages- Service not available everywhere. Faster download than upload. Line testing takes a long time.
FIBRE:
Advantages- fibre has a very fast broadband, it is high speed, reliable and uses different technology that we use today.
Disadvantages- Converting existing hardware and software to use fibre optics can be expensive and time-consuming. Although fibre optic cable itself is cheaper than coaxial cable, the additional components required for a fibre optic network e.g. transmitters, receivers and connectors, can make it a more expensive option.
WIRELESS:
Advantages- Wireless broadband allows you to have an Internet Connection without being connected to you Internet Service Provider (ISP). It provides a variety of options for accessing Internet Services and sharing them.
Disadvantages- Significantly slower than a wired network and risk of 'outsiders' accessing your network unless robust security protocols are enabled.
CABLE:
Advantages- Connection speed is up to 100 times faster than dial up connection. You can download pictures files, software in seconds or minutes instead of hours. Online gaming is only possible using a broadband Internet access. It is convenient because the Internet connection is always on.
Disadvantages- High monthly fee compared to dial up Internet access. Not all phone wires are equipped for DSL service. May not be available in rural or remote areas.
ADSL:
Advantages-There's no need for a second phone line, as you can surf the Internet and make calls at the same time.You won't have to worry about being disconnected and re-dialing as you are always connected.
Disadvantages- Service not available everywhere. Faster download than upload. Line testing takes a long time.
FIBRE:
Advantages- fibre has a very fast broadband, it is high speed, reliable and uses different technology that we use today.
Disadvantages- Converting existing hardware and software to use fibre optics can be expensive and time-consuming. Although fibre optic cable itself is cheaper than coaxial cable, the additional components required for a fibre optic network e.g. transmitters, receivers and connectors, can make it a more expensive option.
Broadband Research
1. What is broadband?
Broadband is a fast Internet connection in today's society, but later on in the future there will be even faster Internet connection. So there is no set definition about a broadband because there is no particular limit or a certain degree of standard of broadband.
2. Outline the methods of delivery of broadband (wireless, cable, ADSL and fibre)? Identify the speed of each method.
WIRELESS: Wireless broadband is basically a wireless Internet signal a wireless modem is connected to your computer and then communicates by way of a radio signal to a receiver in your area. The speed of wireless broadband depends on the type of plan you choose for the wireless Internet connection you get. The speeds of wireless Internet connection can be from 1.1Mbps to 20Mbps.
CABLE: This is a type of broadband using the same optic fibre technology as cable TV. It provides good service but is only available in areas that have cable service in the area. Speeds of cable broadband vary, but are usually from 2 Mbps to over 8 Mbps. Download speeds are much faster than upload speeds and the cost is very similar to ADSL.
ADSL: ADSL works via normal phone lines. One can usually talk on the normal telephone even if you simultaneously surf the Internet via the same telephone line. Speeds of ADSL vary, but are usually in the range of 128Kbps to over 5 Mbps when downloading data. (Asymmetric Digital Subscriber Line) A special type of DSL line where the upload speed is different from the download speed.
FIBRE: Superfast, fibre optic broadband has the potential to deliver upload and download speeds that are lightning fast, compared to traditional broadband – sometimes as high as 40Mbs to 100Mbs.
Broadband is a fast Internet connection in today's society, but later on in the future there will be even faster Internet connection. So there is no set definition about a broadband because there is no particular limit or a certain degree of standard of broadband.
2. Outline the methods of delivery of broadband (wireless, cable, ADSL and fibre)? Identify the speed of each method.
WIRELESS: Wireless broadband is basically a wireless Internet signal a wireless modem is connected to your computer and then communicates by way of a radio signal to a receiver in your area. The speed of wireless broadband depends on the type of plan you choose for the wireless Internet connection you get. The speeds of wireless Internet connection can be from 1.1Mbps to 20Mbps.
CABLE: This is a type of broadband using the same optic fibre technology as cable TV. It provides good service but is only available in areas that have cable service in the area. Speeds of cable broadband vary, but are usually from 2 Mbps to over 8 Mbps. Download speeds are much faster than upload speeds and the cost is very similar to ADSL.
ADSL: ADSL works via normal phone lines. One can usually talk on the normal telephone even if you simultaneously surf the Internet via the same telephone line. Speeds of ADSL vary, but are usually in the range of 128Kbps to over 5 Mbps when downloading data. (Asymmetric Digital Subscriber Line) A special type of DSL line where the upload speed is different from the download speed.
FIBRE: Superfast, fibre optic broadband has the potential to deliver upload and download speeds that are lightning fast, compared to traditional broadband – sometimes as high as 40Mbs to 100Mbs.
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