What is it?Bluetooth is the name of a wireless technology standard for connecting devices, set to replace cables.What do we use it for?You use bluetooth so you can connect mobile phones and headsets to your computer, so your bluetooth headphones deliver stereo quality sound without wires, to be able to send photos from your camera to your computer without the need of wires and many more. How is it part of our multimedia world?Bluetooth is able to send multimedia from one device to another device without the use of wires and cables. Are there different types? What are the advantages/disadvantages of each type?There are no different types of Bluetooth but there is a variety of bluetooth accessories you can get. A "simple" explanation of how it works.Bluetooth uses radio frequencies in the 2.45 GHz range to send information over short distances of generally 10metres or less. By embedding a Bluetooth chip and receiver into products, cables that would normally carry the signal can be eliminated.
A rough indication of the cost of the deviceBluetooth doesn't necessarily have a cost because it mainly comes with the device that is bought for example, a laptop or mobile phone. But the many accessories Bluetooth can come in have different costs. Future directions, what is waiting around the corner, what is the next "new" technology in this area?
The new version of Bluetooth technology will meet the high-speed demands and cater to the needs of low power applications. The next version of bluetooth, also called Seattle, will have many of the same features as the current one but will be capable of very fast data transfer and also being power efficient.
WEBSITES:http://www.youtube.com/watch?v=ibzAaKDUuzU (7th Sept)http://www.racq.com.au/__data/assets/pdf_file/0003/37704/bluetooth2.pdf (7th Sept)http://www.wisegeek.com/what-is-bluetooth.htm (7th Sept)http://www.howstuffworks.com/bluetooth.htm (7th Sept)http://www.howstuffworks.com/bluetooth.htm (7th Sept)http://www.slideshare.net/guesta2de84/bluetooth-future (7th Sept)
CPUs
What is it? What do we use it for?
The CPU, commonly known as the Central Processing Unit (microprocessor), is the heart of any computer whether it is a desktop machine, a server or a laptop. It is the primary element in carrying out the functions of a computer and reads as well as executes program instructions.
How is it a part of the multimedia world?
CPUs are an important and major part of our multimedia world as we frequently interact with them and they respond to our every command. They are some of the most common devices used worldwide and are embedded in every computer. Without CPUs, performing some the simplest operations which we do today, would be impossible as they are the heart of computers and play a large role in our modern multimedia world.
A SIMPLE EXPLANATION...
The CPU is situated in the motherboard and all other hardware components and programs installed on the system must go through the CPU before their function is carried out. When a function, program or piece of data is selected, the CPU retrieves this information from the Random Access Memory (RAM) or any other software, in order to process it. The CPU then reads the command associated to the task and sends it back to the RAM. All data and information must travel to the CPU before the task is executed. The CPUs job is to ensure that the data is guided through the system, to be processed and before the next step is taken.
COST
The costs of CPU chips vary according to their level of performance and abilities. The prices range from $50 (cheapest) up to as much as $2000. Improvements have been made to these very minute cards which withhold large amounts of information and perform multiple, complex tasks.
DIFFERENT TYPES
Two different types of CPUs include the Dual Core Processor and the Intel Core.
The dual core processor consists of two separate cores on the same chip and this is equivalent of tow microprocessors in one. This is advantageous, however, when excessively multitasking, the processor must keep alternating between two or more sets of data streams or programs. Thus, the CPUs resources are depleted and the performance suffers.
The Intel Atom is another type of CPU and the main advantage is that it uses the least amount of energy and is also quite cheap. However, the down side is that the Atom is mainly used in Netbooks and is used for basic computing. They are quite slow and do not compare well with the performance of the Core 2 Duo or the Pentium Dual-Core.
FUTURE DIRECTIONS...
As the years pass by, many new improvements are being made to CPU chips and results might just bring us to the next level in technology. Overall, general stability enhancements are being made and alterations continue to proceed. There are some short term goals in place, however, other features may take years to be established and completed.
WEBSITES
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