This week we talked about Networks, Telecommunications and Wireless Computing. We talked about the different networks that exits - such as Locan Area Network (LAN), Metropolitan Area Network (MAN) and Wide Area Network (WAN), and the differences between these.
There are two primary types of network architecture: Peer to peer and client/server network. A peer to peer network is any network without a central filer server and in which all computers in te network have acces to the public files located on all other work stations. A client/server network is a model for application in which the bulk of the back-end processing takes place om a server, while the front-end processing is handled by the clients.
VoIP (voice over IP) is a technology that transmits voice calls over lomg distance telephone lines. I use Skype a lot when I live so far away from my friends and family, it is really conveniant and free. Also, the quality is similar to traditional phonelines, and today 10% of all phone calls made in the US are made with the help of VoIP.
Network transmission media refers to the various types of media used to carry the signal between computers. Two types of media is wire media (like twisted-pair wiring, coxial cable and fiber-optic cable) and wireless media, that are natural parts of the earths environment that can be used as physical path to carry electrical signals.
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