LIS 2600 Unit7 Internet and WWW Technologies reading notes

1, How Internet Infrastructure work
The content is similar with what we have learned in the class.
URL, domain name, web servers, the topology of internet work.

2, According to the article, library vendors have two choices. They can continue to maintain large systems that use proprietary methods of interoperability and promise tight integration of services for their customers.
I think this approach is difficult to realize for some too old system, especially in developing countries.
My undergraduate university used to operate a small library system which is designed by China in 1970s. However, with the development of library holdings, catalog records and electronic database. The original library system is not applied to the current the conditions any more no matter how hard that the library vendor work on. The university library decided to change its library system.
However, changing a library system is so complicated, tremendous data have to transfer to another new library system, which is a pains-taking job. Besides, new models is strange for librarians and patrons. The effects of the new library system have to be evaluated carefully.

3,Talks Sergey Brin and Larry Page on Google
The global map of Google is amazing.
I am interested in listening to what they say! It is useful and indeed relaxing!

LIS 2600 Week6 muddist point

1, "Robust--can remove/replace machines"
What dose "robust" mean here?

2, Is IP address dynamic and changing often for personal computer? What about IP address about organizations?

3,How to share the brandwidth with neighbors through cable? Why have to share?

LIS 2600 Assignment 4: Working with Jing

1, screencas. com video: How to manage your pitt library account from off-campus location
http://www.screencast.com/users/luckyyuqi/folders/Jing/media/039a4c4c-06e3-4a14-8054-49dc6f12ce05

2,picture
http://www.flickr.com/photos/42326388@N04/3989956447/
http://www.flickr.com/photos/42326388@N04/3990719796/
http://www.flickr.com/photos/42326388@N04/3989971959/
http://www.flickr.com/photos/42326388@N04/3989977865/
http://www.flickr.com/photos/42326388@N04/3989984953/

LIS 2600 Assignment 3: Personal Bibliographic Management Systems

http://www.citeulike.org/user/xiaokaluo

Tree collections:
Digital Libraries: DL
Digital Copyright: DC
Retrieval Information: RInfor

LIS 2600 Week 6 reading notes

1) Local Area Network: http://en.wikipedia.org/wiki/Local_Area_Network
2) Computer network http://en.wikipedia.org/wiki/Computer_network
3) Common types of computer networks http://www.youtube.com/watch?v=1dpgqDdfUjQ
4) Coyle, K. (2005). Management of RFID in libraries. Journal of Academic Librarianship, 31(5), 486-489.

1, Wiki explains the concept of local are network (LAN), which is commonly used in home, office and some group of buildings. LAN was created by university network.
This article is concise and easy to understand.


2, Wiki: computer network
This is a good reading. It is very comprehensive.
Network classification: connection method, scale, network architecture and network topology.
Types of network: LAN, PAN, CAN, WAN,MAN,GAN, VPN ...
Hardware components: network interface cards, repeaters, hubs, bridges, switches and hubs

I have a question:
I found that we have many readings in Wikipedia. We also know that wikipedia allows anybody to publish and edit the concepts. In other words, the editors in wikipedia can be anybody. Is the knowledge on wiki true and authoritative? Why we rely on wiki to learn knowledge?



3, The video on youtube talks about the common types of computer net works. There are personal networks, Local networks and world wide networks. Though the man do not mention the many details about three types of networks. But I do like this video when I am tired of reading numerous papers. This is a interesting way for us to get knowledge.


4, Link: http://www.kcoyle.net/jal-31-5.html
Management of FRID in libraries
The technology of FRID is more advanced than Barcodes. The author analyzes the pros and cons of FRID in libraries. In my opinion, it may be a little harder for libraries who lack financial aid to realize the total change into FRID, sine using FRID in libraries will take libraries a lot of money. And FRID is not perfect.

LIS 2600 Week 5 the muddist point

1, why TIFF is better than PNG in black and white images, especially text and drawing? Is it GIF good at text and drawings? And in the class, we are told that PNG only use one compression, so what compression does PNG use?

2, why the information on PPT page 53 and page 54 about NTSC is different? PPT 53, " 60 "interlaced" half-frames/sec, 512x486", but page 54, "640x480 and 30 frames per second". The number of frames per second is different.

3, what about the video format extension". rmvb". It is a very popular video formats when we download videos from internet.

message about the link

http://brandonlocke.blogspot.com/2009/09/readings-week-five.html?showComment=1254000468896#c1031145154768220447