Friday, July 29, 2011

CPU Quiz:

1.      What is the function of the CPU?
The function is to perform operations which make your computer run.

2.      What was the name of the first CPU?
It was the: Intel 4004

3.      Referring to the graph on page 2 of the article, describe how the speed of CPU’s has changed.
The speed has over the years increased greatly, starting with only a speed of 2MHz it now as the capabilities of running at speed of 3.6 GHz. The speed is a function of the manufacturing process and the delays within the chip.

4.      What does MIPS measure?
It stand for “millions of instructions per second” It roughly measures the performance of the CPU.

what is a dual core processor, what is multitasking and how do the two work together.


5.      Research (Google it) what is a dual core processor, what is multitasking and how do the two work together.

What is a dual core processor?
A duel core processor is a CPU with two separate cores on the same die, each with its own cache

What is Multitasking?
A method where multiple tasks, also known as processes, share common processing resources

How do they 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.
Atom Processor Benefits:
Intel Atom processors are optimized to enable new connected experiences with a range of capabilities³:
·         A new range of power-efficient devices with excellent performance enabled by industry-leading 45nm high-k metal gate technology and soon, 32nm silicon process technology
                                                                                                                                          
·         Highly integrated application processor that transforms everyday devices

·         Smaller, more compact designs with a thermal design power (TDP) ranging from less than 1 watt to 13 watts

·         Low power options in select devices enabling incredibly low idle, allowing devices to conserve energy

·         Better performance and increased system responsiveness enabled by Intel® Hyper-Threading Technology (Intel® HT Technology)²

Wednesday, July 27, 2011

Broadband Research Part 1:

1.      What is broadband?
According to dictionary.com broadband is: Adjective: Of or using signals over a wide range of frequencies in high-capacity telecommunications, esp. as used for access to the Internet. Broadband can also be and internet connection that is faster than a dial up connection. A connection of 256 kbit/s or greater is more concisely considered broadband Internet access.
2.      Outline the methods of delivery of broadband (wireless, cable, ADSL and fibre)? Identify the speed of each method.
  • Wireless:  A connection can be made to the internet without the use of a telephone or cable line. A modem is connected to your computer and communicates by using radio signals to a receiver in your area. Speeds of 256/64kb to 512/128kb are common for wireless connections.
  • Asymmetric Digital Subscriber Line (ADSL): digital data transmission over the wires of a local telephone network. It works by splitting your phone line signal into two separate channels, one for normal voice usage and the other for internet usage. This is done by placing a splitter on the existing phone line that enables both voice and internet communication. Most forms cannot reach 10 Mbps.
  • Cable: Cable broadband is made from a co-ax material which greatly increases bandwidth limits. Cable Internet uses the already existing wires that are used to transfer television signals to your home. You can even use your cable wire for Internet access at the same time that you are using it for television. Cable technology supports approximately 30 Mbps of bandwidth
·         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. Can offer broadband speeds up to 100 Mbps!

 Discuss the advantages and disadvantages of each method.

ADVANTAGES:
Fibre: superfast broadband,  easier for multiple people in one house to be doing multiple things at once
ADSL: Speed is very fast, Convenience, Fixed Cost, no more modem screeching noises
Cable: Reliable Speed and Quality, No Telephone Interference
Wireless: Access the Internet Anywhere, Convenience
DISADVANTAGES:
Fibre: They aren’t currently available everywhere.
ADSL: Signal Reliability, Speed Reliability
Cable: Busy Networks, Special Modem, Limits to download amount, Installation
Wireless: Speed is considerably slow, Reliability, Compromised security, Cost