Data Compression
An informative and extensive script on data compression, the most important things I learnt are;-
1. There are different types of compression possibilities therefore the user must be cautious in selecting the most appropriate one for the job at hand.
2. Compressed files have to be decompressed before being used, this means that both sender and receiver must have and be able to use the required tools.
3. Lossless compression is totally reversible whilst lossy incurs some content contraction in the process.
4. Though compression saves storage space it requires additional processing before it can be reused, the implication here is that immediate use of content is compromised somewhat.
5. Streaming, the way we look at lectures, is not true streaming since it is not live.
6. Data compression usage in libraries will cut back on storage space but would that exclude usage of content by those who don’t have or cannot use decompression software. In addition, will loss of content, if applicable, be advertised so that the user will be forewarned?
Imaging Pittsburgh
1. This article reminded me of a tour I did for another class where Pittsburgh then and now was the focus.
2. The need to preserve and share the past is not just a good thing it is necessary to inculcate an appreciation of what was and what is.
3. Many skills from disparate contributors are required for a task of this complexity.
4. Metadata's importance is underscored; it is the thread that links the user to the information source.
5. The availability of this content online will no doubt impact both access and usage.
YouTube and Libraries
1. Utilizing YouTube’s extensive reach has great possibilities for libraries; many have already jumped on board and are having some success. In addition to those listed in the article I came across one that is close to home (for me). Check it out!
Nan,
ReplyDeleteThank you for posting that link to the Nalis video. That's exactly the type of thing I had envisioned when I read the article. Of course I had something a little flashier in mind :o) I could definitely produce something like that in my student teaching this fall. If I do, I will send you a link.