Monday, June 21, 2010
Video =]
We have started our how to use facebook tutorial...at first we were struggling to use Webinaria...but then we were fine...now we are using webinaria to video our tutorial...i am doing the recording and julie ias editing it...:)
Tuesday, June 1, 2010
VIDEO :)
We are no more doing the dance tutrorial, Abuk will now be doing her assignment on her own and Julie and I are doing a computer tutorial, it will require us using a camcorder. We are looking for a free camcorder download, then we will make our tutorial on application on the computer such as how to use facebook or paint or other applications... :)
DATA COMPRESSION!!
What is data compression?
It is the process of encoding information using less bits than an unencoded.
What is a data compression ratio?
It is also known as compression power, data compression is a computer-science term used to quantify the reduction in data-representation size produced by a data compression alogirthm.
Why is data compression an important technique for the online world?
It is important because, it helps compress data so it can be downloaded or uploaded to anything or from anything.
What is the difference betweeen Lossy and Lossless data compression?
Lossless data compression uses data compression algorithms which allow the exact original data to be recreated from the compressed data, where as Lossy data retrieves data that may be different form the original one but it is still 'close enough' which is useful in some way.
Which method offers the greatest compression ratio?
Lossless because through that method, none of the information is lost it compresses the exact data.
Why is human psychology and perception an important factor in method of Lossy compression?
An important factor is that it allows us to get rid of data we dont notice. For example: certain high frequency of sounds.
Name Lossy file formats for audio, still image and video format.
There are heaps of formats, names of some are; Mp3, JPEG, Mpeg.
It is the process of encoding information using less bits than an unencoded.
What is a data compression ratio?
It is also known as compression power, data compression is a computer-science term used to quantify the reduction in data-representation size produced by a data compression alogirthm.
Why is data compression an important technique for the online world?
It is important because, it helps compress data so it can be downloaded or uploaded to anything or from anything.
What is the difference betweeen Lossy and Lossless data compression?
Lossless data compression uses data compression algorithms which allow the exact original data to be recreated from the compressed data, where as Lossy data retrieves data that may be different form the original one but it is still 'close enough' which is useful in some way.
Which method offers the greatest compression ratio?
Lossless because through that method, none of the information is lost it compresses the exact data.
Why is human psychology and perception an important factor in method of Lossy compression?
An important factor is that it allows us to get rid of data we dont notice. For example: certain high frequency of sounds.
Name Lossy file formats for audio, still image and video format.
There are heaps of formats, names of some are; Mp3, JPEG, Mpeg.
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