Tuesday, March 31, 2009

Week 10

Networks, Telecommunications, and Wireless Computing

Telecommunication systems enable transmission of data over public or private networks. A network is a communications, data exchange, and resource-sharing system created by linking two or more computers and establishing standards, or protocols, sp that they can work together.
Network basics: LAN – MAN – WAN

Networks are differentiated by: Architecture, topology, protocols and the media.
An IP address can find where that exactly computer is working from. Companies can use this tool to see where to advertise and where the target customers are. One example is Google which can find where people are searching for different products, and how many IP addresses that use Google.

Client/Server networks
A client: A computer designed to request information from a server
A server: A computer that is dedicated to providing information in response to an external request,
A client/server network: A model for application.

Media
Network transmission media refers to all the various types of media that is used to communicate between computers.
Wire Media can be used as physical paths to carry electrical signals. This is a good tool for people working outside their office and can connect to the Internet from different places.
E-business networks consist of virtual private network (VPN) such as the HPU Pipeline and value added networks (VAN.)

The wireless technology makes people work 24/7. It gives users a life connection via satellite or radio transmitters. This type of technology is growing. Bluetooth is convenient in creating a niche market for traditionally cabled devices. Radio Satellites is not as reliable as satellite, including wireless connections. Satellite connections can easily be broken compared to cables.

In the second part of the class we watched three videos considering RFID. RFID use active tags in the form of chips or smart labels that can store unique identifiers and relay this information to electronic readers. This is a decent tool for use in supply chain management for the product to go from production to the warehouse for thereafter to the retailer. We discussed in class the positive and negative effects of RFID.

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