Week #4: Multimedia Representation and Storage

"Data Compression: Wikipedia" and "DVD-HQ: Compression"
These articles were interesting and accessible. The technical, for the most part was left out and I really liked the humor and the simplified examples used to explain some concepts.  Any time I hear, or read of algorithms I glaze over but thankfully the authors spare us the explanation reserved for programmers and give appropriate and practical techniques. This information is certainly not something I will retain but am thankful I know where to find it when I need it.

The basics…with more information on small storage devices and the demand for faster retrieval, compression is necessary. Although the files need to be decompressed in order for the data to be used it is a better storage option.

The process of compressing files divides the subject up into lossless data compression, lossy compression of still and audio and video compression. More information can be in the same space with less time and broadband used to transfer them.

"Imagining Pittsburgh"

(http://www.ala.org/ala/acrl/acrlpubs/crlnews/backissues2007/jun07/youtube.cfm)

This is a great example of digitization and the collaborative effort of three institutions, Archive service center of the University of Pittsburgh, Carnegie Museum of Art, and the Historical Society of Western PA. By combining their resources and efforts, one web site or portal allows users to view an amazing collection.

"YouTube and Libraries"

(http://www.firstmonday.org/issues/issue9_5/galloway/index.html)

This is simple and easy to access. Librarians can use it to the advantage of their users and it helps in meeting the needs of a diverse population. We can keep up with the times and use the “tools” available. This stands to be an economic advantage during our budgetary restraints. It is a chance for creativity.