The Different Types Of Data CompressionArticle Posted by Expert Author: Nancy Ruskus on 02/07/2013
Data compression is something that is done with many different file types. For example, in order for a web site owner to ensure their site loads as quickly as possible, they may have compressed the images on their site. But web site hosts also use data compression in order to save both bandwidth and storage space on their server.
A common type of data compression is called lossless. This is an algorithm, or procedure, which allows the exact original data to be reconstructed from the compressed data. This type of compression is most often used in situations where the data of the original and decompressed files need to be identical, or where not having the two files identical can result in negative consequences. Examples include executable programs, and source code, such as the kind found in the 'guts' of a web page.
Another common type of compression is known as differential data compression. This compression type is usually used by data back up companies in order to minimize the amount of bandwidth used when files are transferred. In differential data compression, only the information that has changed in a file is transferred, instead of the entire file. This way, only the new information found in the file is sent to the servers.
Additionally, here at The Web Host Guru we have found that HTTP compression can also result in faster downloading of the elements on your site by your visitors. This compression type is useful if your web host only has a limited amount of bandwidth to offer you and you have to use it more efficiently. However, understanding this type of compression can be a daunting task, and so a web host who can do this for you will be a definite plus if you are just beginning to explore web site ownership and creation.
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