The Data Compression article was informative. I often hear of the term Zip File but was unclear of the purpose until reading this article. I now know that it is a type of file that provides compression and storage . I am not as confident however about the difference between Lossless versus lossy compression. I understood the example that was used to simplify a way of saying 25[9]8, but am not really clear on what is actually being compressed.
The article on Data compression basics also was a little difficult to understand. The examples appeared to be simple but once it began to explain converting the items in the example to bytes I was a little lost.
The First Monday article by Edward A. Galloway was fascinatinating. The University of Pittsburgh's Digital Research Library's ability to provide online access to over 7,000 images is note worthy. The article actually raised my muddiest point for this week-What are the disadvantages to using Metadata?
The article by the Association of College and Research Libraries raised some great points concerning You Tube. I have used You Tube in the past infrequently. If there was an important interview that I wanted to watch had been my only reason to tune in. The article has at least convinced me to go on the site, and at least give some of the other offered options a try.
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2 comments:
Liz,
I definitely agree with you that the lossless vs. lossy compressions were troublesome. I know that the lossless is 25 [9] 8 and the lossy would just be rounded up to 26, which would save more space but lose a larger amount of data (which could be important depending on the file!) Otherwise, I am with you that once the authors went into more detail, the clarity faltered.
Hi Liz,
I also had no idea what zip file really meant until this article. I'm not too confident with lossless v. lossy either. In my mind a lossless file would be able to be displayed completely after being compressed, while lossy might be text only or the formatting might be messed up; I'm not sure if this is an accurate understanding, and class will probably clear it up.
I'm happy we read about YouTube because I sometimes forget how easy to us and full of information it is. Thanks!
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