Youtube video
This viedo was very straightforward and mentioned all the different types of connections and then explained them. The different types mentioned where PAN which is for a pc, LAN which would be for a building like your house, CAN is a college area network, WAN is a wide area network, and MAN is a metropolitan area network.
Wikipedia on Computer Networks
This article was similar to the youtbue video in that it explained the same networks as the vide did. It did however mention one other one that the video negelcted to talk about. This is the global area netwrok which is a "model for supporting mobile communications across an arbitrary number of wireless lans, satellite, coverage areas etc" (wiki pg 4). The wiki also mentioned major categories used to classify networks such as scale, connection method, functional relationship and network topology. The one part of the article that I found interesting is the definition of the varients of interwork as I never knew quite what each one meant. Lastly the article mentions basic harware components such as a router that is used to "forward data packets between networks using header and forwarding tables to determine the best path to forward packets.
Wikipedia on Local Area Networks
Compared the wiki on computer networks this one was a lot shorter. It starts out by mentioning the history of it. I was amazed to see how long it had been around. It then focues on the LAN for the pc and mentioned a few technical aspects. From 1983 onward the coming year would regulary be declared the year of the LAN.
Management of RFID in Libraries
Before reading this article i had no idea what RFID even was. The RF stands for radio frequency and the ID means identifier. The article described that the "tag consists of a computer chip and an antenna, often printed on paper or some other flexible medium" (RFID pg 1). The RFID chip has the potential to carry lots of information. There are hundreds of RFID products on the market as the article mentioned. I find it interesting that some librarians question whether they should consider using RFID because of privacy issues. It seems like ut could be of help to them so why not use it. It seems quite uself that libraries can use RFID as a security mechanism and makes me wonder why most libraries haven't done this already. The fact that the RFID tags can be shielded by the thing mentioned in the ad makes me worry though. I guess this is the reason that libraries are so hesitant to adopt this technology. There do seems to be a lot of good uses for RFID in libraries though such as the tags being able to to be read while the book is on the shelf.
1 comment:
Hi Susan,
You so have to tell me how you added the play list, and I love that U2 song. Humor is method that I find helps me learn and remember lessons. We each have a learning style, and the trick is know what works for you.
RFID does have good and bad potential. One can hope it will be used as a deterrent to crime, but one can see positive uses as well. Some examples of positive use:
In cases where a child has gone missing, where campers are stranded, and other natural disasters.
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