Week 10: Clear

Communications and networks, sounds boring..right? But its because of those two 'things' that connect us with the entire world. Those are why I am able to write this blog, go on Facebook, Twitter, ESPN, check me e-mail and so many other things. There are a lot of niche and glitches in order for network to get communication from the outside world. Its not as easy as 1,2,3. Nothing really is in the computer world. We have communication concepts which include protocols and networks. We have TCPIP which invloves static addressing. LANs and WANs are different types of network. Then we have communication apps like email. And finally network servers.



We can define a protocol as set of rules. So communication protocol is a set of rules which are used for communication. for example when we log on to MSN Messenger and we do chat with our friends then this is communication between us and protocols which are used for this are known as communication protocols. Now we can define communication protocol as a set of rules which enable commuhttp://www.blogger.com/img/blank.gifnication between two or more than two users in the form of voice, video and messaging. TCPIP is a communication protocol. Transmission Control Protocol is used to control the data exchanged between two ends these ends can be computers or any other device. It is guaranteed that data will be reached on the destination in the form in which it was sent from the source. Similarly SSL, USB are also known as communication protocols.

A local area network (LAN) is a group of computers and associated devices that share a common communications line or wireless link. Typically, connected devices share the resources of a single processor or server within a small geographic area (for example, within an office building). Usually, the server has applications and data storage that are shared in common by multiple computer users. A local area network may serve as few as two or three users (for example, in a home network) or as many as thousands of users (for example, in an FDDI network).



A wide area network (WAN) is a geographically dispersed telecommunications network. The term distinguishes a broader telecommunication structure from a local area network (LAN). A wide area network may be privately owned or rented, but the term usually connotes the inclusion of public (shared user) networks. An intermediate form of network in terms of geography is a metropolitan area network (MAN).



A network server is a computer designed to process requests and deliver data to other (client) computers over a local network or the Internet.

Network servers typically are configured with additional processing, memory and storage capacity to handle the load of servicing clients. Common types of network servers include:

- Web servers
- proxy servers
- FTP serv
ers
- online game servers

Numerous systems use this client / server networking model including Web sites and email services. An alternative model, peer-to-peer networking enables all computers to act as either a server or client as needed.

http://compnetworking.about.com/od/basicnetworkingconcepts/g/network_servers.htm
http://www.yale.edu/pclt/COMM/TCPIP.HTM
http://compnetworking.about.com/cs/lanvlanwan/g/bldef_lan.htm
http://compnetworking.about.com/cs/lanvlanwan/g/bldef_wan.htm