Friday, July 29, 2011
MIPS
MIPS stands for million instruction per second it is a method of measuring the raw speed of a computer's processor. Since the MIPS measurement doesn't take into account other factors such as the computer's I/O speed or processor architecture, it isn't always a fair way to measure the performance of a computer. For example, a computer rated at 100 MIPS may be able to computer certain functions faster than another computer rated at 120 MIPS.
Changes in speed of tge CPU
Thw speed of CPUs has changed since the first CPU in 1973 to the latest that was realeased in 2004. It has incraesed from 2 MHz to 3.6 GHz
name of first CPU
The first CPU was an intel 4004 4-bit centeral proscessing init released by the in tel procssing unit in 1971. It was the first complete CPU on one chip, and also the first commercially available microprocessor.
Function of the CPU
CPU stands for central processing unit. Overall a personal computer can be divided into the following major parts from point of view of functions performed:
1. Input devices (keyboard, mouse)
2. Output devices (monitor which displays the output or results of work being done on the computer)
3. CPU (central processing unit, which is the brain of the computer which does all the processing and calculations on data inputs and provides output on screen or printer)
4. Storage devices (memories, hard disk which store data).
Many times in common language the CPU term is used for the computer box unit which contains motherboard, processor, hard disk, CD/DVD and floppy drives. This is the box to which we connect monitor, keyboard, mouse and printer through cables. In technical terms the term CPU is used only for the processor, which fits on the motherboard.
Central Processing Unit (CPU), in computer science, microscopic circuitry that serves as the main information processor in a computer. A CPU is generally a single microprocessor made from a wafer of semiconducting material, usually silicon, with millions of electrical components on its surface. On a higher level, the CPU is actually a number of interconnected processing units that are each responsible for one aspect of the CPU's function. Standard CPUs contain processing units that interpret and implement software instructions, perform calculations and comparisons, make logical decisions (determining if a statement is true or false based on the rules of Boolean algebra), temporarily store information for use by another of the CPU's processing units, keep track of the current step in the execution of the program, and allow the CPU to communicate with the rest of the computer.
1. Input devices (keyboard, mouse)
2. Output devices (monitor which displays the output or results of work being done on the computer)
3. CPU (central processing unit, which is the brain of the computer which does all the processing and calculations on data inputs and provides output on screen or printer)
4. Storage devices (memories, hard disk which store data).
Many times in common language the CPU term is used for the computer box unit which contains motherboard, processor, hard disk, CD/DVD and floppy drives. This is the box to which we connect monitor, keyboard, mouse and printer through cables. In technical terms the term CPU is used only for the processor, which fits on the motherboard.
Central Processing Unit (CPU), in computer science, microscopic circuitry that serves as the main information processor in a computer. A CPU is generally a single microprocessor made from a wafer of semiconducting material, usually silicon, with millions of electrical components on its surface. On a higher level, the CPU is actually a number of interconnected processing units that are each responsible for one aspect of the CPU's function. Standard CPUs contain processing units that interpret and implement software instructions, perform calculations and comparisons, make logical decisions (determining if a statement is true or false based on the rules of Boolean algebra), temporarily store information for use by another of the CPU's processing units, keep track of the current step in the execution of the program, and allow the CPU to communicate with the rest of the computer.
Wednesday, July 27, 2011
NBN
Method of Delivery:
The NBN will be using the Fibre Otic Cable form of broadband as their methood of delivery
Expected Speed:
111 gigabits per second
Expected Costs:
Connectis start at 37.5/per month
Australia should investin this technology as it would benifit web browing In Australia as it offers high speed speed for a price that maybe a bit expensive but i would be worth it and as time goes by prices are likely to go down.
The NBN will be using the Fibre Otic Cable form of broadband as their methood of delivery
Expected Speed:
111 gigabits per second
Expected Costs:
Connectis start at 37.5/per month
Australia should investin this technology as it would benifit web browing In Australia as it offers high speed speed for a price that maybe a bit expensive but i would be worth it and as time goes by prices are likely to go down.
Broadband provides
Following are the plans for ADSL2+ internet:
- Big Pond: 50gb data for $49.95 a month
- Yes optus: 120gb for $70 a month
- iinet: 100gb $49.9f a month
- Big Pond: 50gb data for $49.95 a month
- Yes optus: 120gb for $70 a month
- iinet: 100gb $49.9f a month
Monday, July 25, 2011
Advantages and Disadvantages
Advantages of Wireless:
- Wireless Internet provides super fast broadband speed, approaching 2 megabytes per second or faster.
- Wireless Internet is more affordable
- Wireless Internet is also incredibly responsive, when you call up web pages, download emails, and engage in teleconferencing or video conferencing over the net.
- The wireless Internet broadband service offers rural Web surfers a way to tap into high speed telecommunications
Disadvantages of Wireless:
- someone, within the wireless traffic can hack into your connection.
Advantages of Cable: - High connection speed
- Convenient
- you are always connected to the internet
- Does not affect your phone line. You don’t need to switch your local phone service provider.
- Connection speed is not affected by the distance from ISP operation center
- Easy setup with self installation kit
Disadvantages of Cable:
- Higher price than dialup and DSL connection
- Higher security risk than dialup or DSL (personal firewall is needed)Not available to all cable TV networks
- Bandwidth is shared over the same cable line.
- Connection speed is affected by the number of people using the internet at the same time in your neighborhood.
- Usually tie with cable TV subscription
Advantages of ADSL:
- Independent services: Loss of high speed data does not mean you lose your telephone service. Imagine your telephone, television, and Internet access going out when a cable company amplifier/repeater stops working.
- Security: Unlike cable modems, each subscriber can be configured so that it will not be on the same network. In some cable modem networks, other computers on the cable modem network are left visibly vulnerable and are easily susceptible to break ins as well as data destruction.
- Integration: DSL will easily interface with ATM, Nx64, and WAN technology. Telecommuting may get even easier.
- High bandwidth
- Cheap line charges from the phone company.
- Good for "bursty" traffic patterns
Disadvantages of ADSL:- Distance dependence: The farther you live from the DSLAM (DSL Access Multiplexer), the lower the data rate.
- Access: rural areas get shorted.
- Limited availability
- No current standardization: Customers may have to buy new equipment to simply change ISPs
Advantages of Fibre:
- Can be used over greater distances due to the low loss, high bandwidth properties
- It can be used for 2km without the use of a repeater
- “Their light weight and small in size, which makes them ideal for applications where running copper wires would be impractical
- Due to the fibres being non-conductive, it can be used where electrical isolation is needed
- The fibres are do not pose a treat to the environment, such as in a chemical plant where a spark could cause an explosion
Disadvatages of Fibre:
- It is much more costly than other cables to install - It is relatively difficult to install
- Wireless Internet provides super fast broadband speed, approaching 2 megabytes per second or faster.
- Wireless Internet is more affordable
- Wireless Internet is also incredibly responsive, when you call up web pages, download emails, and engage in teleconferencing or video conferencing over the net.
- The wireless Internet broadband service offers rural Web surfers a way to tap into high speed telecommunications
Disadvantages of Wireless:
- someone, within the wireless traffic can hack into your connection.
Advantages of Cable: - High connection speed
- Convenient
- you are always connected to the internet
- Does not affect your phone line. You don’t need to switch your local phone service provider.
- Connection speed is not affected by the distance from ISP operation center
- Easy setup with self installation kit
Disadvantages of Cable:
- Higher price than dialup and DSL connection
- Higher security risk than dialup or DSL (personal firewall is needed)Not available to all cable TV networks
- Bandwidth is shared over the same cable line.
- Connection speed is affected by the number of people using the internet at the same time in your neighborhood.
- Usually tie with cable TV subscription
Advantages of ADSL:
- Independent services: Loss of high speed data does not mean you lose your telephone service. Imagine your telephone, television, and Internet access going out when a cable company amplifier/repeater stops working.
- Security: Unlike cable modems, each subscriber can be configured so that it will not be on the same network. In some cable modem networks, other computers on the cable modem network are left visibly vulnerable and are easily susceptible to break ins as well as data destruction.
- Integration: DSL will easily interface with ATM, Nx64, and WAN technology. Telecommuting may get even easier.
- High bandwidth
- Cheap line charges from the phone company.
- Good for "bursty" traffic patterns
Disadvantages of ADSL:- Distance dependence: The farther you live from the DSLAM (DSL Access Multiplexer), the lower the data rate.
- Access: rural areas get shorted.
- Limited availability
- No current standardization: Customers may have to buy new equipment to simply change ISPs
Advantages of Fibre:
- Can be used over greater distances due to the low loss, high bandwidth properties
- It can be used for 2km without the use of a repeater
- “Their light weight and small in size, which makes them ideal for applications where running copper wires would be impractical
- Due to the fibres being non-conductive, it can be used where electrical isolation is needed
- The fibres are do not pose a treat to the environment, such as in a chemical plant where a spark could cause an explosion
Disadvatages of Fibre:
- It is much more costly than other cables to install - It is relatively difficult to install
Methods of Delivery
Outline the methods of delivery of broadband (wireless, cable, ADSL and fibre)? Identify the speed of each method.
Wireless: Wireless is an emerging technology that will soon match and overtake the popularity of other current Broadband types. Connecting to the Internet can be made almost anywhere by accessing 'Hotspots' which are hosted in various locations, so you don't need a telephone or cable line. Wireless technology is similar to Mobile Phone technology, as it adopts a similar methods of transmitting data via radio waves.
Cable: Cable Broadband is made from co-ax material which greatly increases bandwidth limits. Higher speeds and a broader capacity allows users to bundle their Internet with PAY TV and VoIP services which can also run simultaneously through the same connection without interference. Over the previous decade Cable has become a popular alternative for Broadband Internet services and is still rapidly growing. It's available in most metropolitan locations and currently serviced by two Providers, namely BigPond & Optus.
ADSL: ADSL broadband has largely been eclipsed by ADSL2+, which is faster, and now one of Australia’s most popular types. But depending on your user habits, an ADSL connection may be fine – and work out better value.
Fibre: Fibre Broadband uses Fibre Optic cable to deliver data and is able to deliver it faster and also much more of it than can be done with the existing copper wires currently in use.
Wireless: Wireless is an emerging technology that will soon match and overtake the popularity of other current Broadband types. Connecting to the Internet can be made almost anywhere by accessing 'Hotspots' which are hosted in various locations, so you don't need a telephone or cable line. Wireless technology is similar to Mobile Phone technology, as it adopts a similar methods of transmitting data via radio waves.
Cable: Cable Broadband is made from co-ax material which greatly increases bandwidth limits. Higher speeds and a broader capacity allows users to bundle their Internet with PAY TV and VoIP services which can also run simultaneously through the same connection without interference. Over the previous decade Cable has become a popular alternative for Broadband Internet services and is still rapidly growing. It's available in most metropolitan locations and currently serviced by two Providers, namely BigPond & Optus.
ADSL: ADSL broadband has largely been eclipsed by ADSL2+, which is faster, and now one of Australia’s most popular types. But depending on your user habits, an ADSL connection may be fine – and work out better value.
Fibre: Fibre Broadband uses Fibre Optic cable to deliver data and is able to deliver it faster and also much more of it than can be done with the existing copper wires currently in use.
Broadband
What is broadband? The term broadband describes the wide range of frequencies that can be transmitted through communication channels (i.e. Internet). The wider your bandwidth is, the greater the amount of information that can be transmitted simultaneously.
Tuesday, July 19, 2011
Best Multimedia Device
What multimedia device or service would you find it hardest to be without? Discuss.
I would find it most hardest to be without the Internet I choose this option because this multimedia device enables so many other multimedia devices to be included in the one source for example the multimedia device the ebook this kind of service would be able to be found on the Internet another example is TV this can also be viewed on the Internet but may have a few delays as to when it is screened. It also allows
I would find it most hardest to be without the Internet I choose this option because this multimedia device enables so many other multimedia devices to be included in the one source for example the multimedia device the ebook this kind of service would be able to be found on the Internet another example is TV this can also be viewed on the Internet but may have a few delays as to when it is screened. It also allows
Where multimedia is commonly seen
Multimedia can be used wherever you have a human interface with electronic information.
- TV
- Computers
- Internet (YouTube, FaceBook, My Space, Google Earth, Street View)
- DVD
- BluRay
- Ipods (MP3 / MP4 players)
- Mobile phones
- Education
- Digital Cameras
- Gaming
- Digital video
- Digital Audio
- Business Marketing(livecasting and podcasting, photo, video and file sharing)
- ebooks
- TV
- Computers
- Internet (YouTube, FaceBook, My Space, Google Earth, Street View)
- DVD
- BluRay
- Ipods (MP3 / MP4 players)
- Mobile phones
- Education
- Digital Cameras
- Gaming
- Digital video
- Digital Audio
- Business Marketing(livecasting and podcasting, photo, video and file sharing)
- ebooks
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