Saturday, October 23, 2010

10/23 Notes for readings/viewings Week 7 Michele Farina


10/23 Notes for readings/viewings Week 7
“How Internet Infrastructure Works”
                  Finally, an article lets me understand how my home computer actually connects to the internet.  Every time I moved to a new apartment (and I’ve had over 15 in the last 15 years) I’ve had to go through the challenge of connecting my computer to the internet.  I have a Mac and had to choose between Ethernet, Pop, Tcp/ip and such options that made absolutely no sense to me!  Sometimes I would need to enter my IP address, which of course I didn’t know.  I’d try all the options until I could find one combination that worked.  As the years have gone by, it has become increasingly easier to set up my computer- thank goodness.  So, perhaps this article is a little too late to help me actually connect to the internet, but I’m glad to have read it and finally know what all that ‘gobbledygook’ means!

“Dismantling Integrated Library Systems”
                  Understanding exactly what an ILS is, prior to reading this article, would have been very helpful.  It seems to me that this is a case of fixing something that wasn’t broken in the first place.  In fact, fixing something that had 25 years of experience and improvement put into it, making it a logical and usable product. 
                  I understand the need to continuously upgrade and improve ILS in light of new technology and increased patron dependence on the internet.  It must be really difficult and costly to keep up, however, as technology changes so quickly.  It sounds like there are many vendors competing to get their products chosen and purchased.  It was interesting to read that the MARC record is holding back library automation.
                  Even on our own university library site, we have a choice between Pitt Cat Classic and Pitt Cat +.  One could assume that the + option is better, more modern, yet I often get better search results using the Classic version.  We are soon going to another system, I’m told, which shows that our library, too, is in a constant state of change.  I’m curious to use the new system, as it will then give me hands-on experience with three systems.

“Inside the Google Machine”
                  I love the world map of Google usage.  It really drives home the enormous scale and scope involved in the entire world using Google- in terms of the traffic load of queries.  Really impressive!  The graph showing queries into the group Las Ketchup is a great way to show trends.  I learned about the Google Foundation. 
                  Some interesting facts I’ve learned about Google as a company include: Brin and Page both attended Montessori school, Google employees are permitted to spend 20% of their time on self-selected projects, Google isn’t afraid to put effort into many new ideas, etc.  I’d like to work for Google in some capacity- what an exciting company.
                  It was also interesting to hear about innovations that were new and exciting at the time of the recording (2004) and have since become obsolete.  Their idea of making advertising useful, not simply annoying is great.  How interesting that Google is able to serve the entire world, even poorer countries, based on the revenue generated from advertising.  Finally, I was glad to hear that it is important to Google to present true information.

Friday, October 8, 2010

Monday, October 4, 2010

Week 5's Muddiest Point- Jing

I've been experimenting with Jing, and I think it's pretty cool. I would like to know if there's a way to compile several separate recordings (both still and video) into one larger file.
I'd like to use parts of a Word document, internet pages, and other material in one single presentation.
I'd appreciate any help or suggestions. Thanks

Reading Notes for Week 6- M. Farina


Computer Networks- Wikipedia
There are numerous types of networks- government, academic, corporate, public and private.  Together, these various networks make up the Internet.  Additionally networks are classified according to their scale, scope and purpose.  Some examples of this are:  LAN (Local Area Network), WAN (wide), MAN (metropolitan), PAN (personal), VPN (Virtual Private), CAN (campus), SAN (storage), HAN (home) and OAN (office).  As expected by their names, these various types of networks serve different purposes and have specific intended audiences.  To support mobile connections across networks a Global Area Network is used.  And of course the Internet is an interconnected global system of networks.
                  Intranets and extranets are usually part of or extensions of a LAN.  Overlay networks can improve internet routing, although I’m not really clear on exactly how they work.
                  The basic hardware components needed to create a network follow:  network internet cards, repeaters, hubs, bridges (local, remote & wireless), switches and routers.
                  This article helped me learn some new vocabulary (hubs, overlay networks) and clarify other vocabulary and acronyms (routers, PAN, VPN).
                 
Common Types of Networks – YouTube, Frank L. Klein
                  This short video reinforced the information in the above article, in respect to the types of networks.  I enjoy this short video learning format more than reading pages of material that is beyond my grasp.

Local Area Networks - Wikipedia
                  LANs have two noticeable advantages over WAN: higher data-transfer rates and no need to lease telecommunication lines.  I found the history and standards evolution notes interesting; I’m amazed at the growth of computer networks in the last 40 years.  It became apparent that shared methods and resources would be needed, even in something like coaxial cables.

Management of RFID in Libraries- Karen Coyle
                  Since our first assigned reading on RFID technology, I’m been intrigued by and interested in these amazing, tiny radio frequency identifiers.  I like that the article gives lots of examples of current RFID use- toll-road payment, keycards, lost dog chips, on dvds to prevent piracy, etc.
                  Karen Coyle notes that at the time of writing, 2005, libraries were using the low-end price, short read, limited capability RFIDs.  I wonder if now , five years later,  the situation has changed in libraries.  Are libraries moving from bar codes to RFID?  Or will they?  In a library setting RFOD has several pertinent uses- circulation and security.
                  Although the use of RFID for security issues is not necessarily any better than security tape or tags hidden in book spines, an RFID device can provide many other services in addition to security i.e. processing items, monitoring circulation and book fines.  Using RFID for all of these purposes can end up being cost-efficient.  The author continues to explain issues of ROI (Return of Investment), and stresses the importance of considering User Satisfaction.  Do patrons want to use self-checkouts?  What other uses of RFID may make patrons’ library visits more enjoyable or satisfying?
                  Potential problems of RFID include where to lace the tags in various items (sheet music, magazines), durability (can they withstand numerous uses), and will they work with ILL (Interlibrary loans)?