Saturday 8 October 2011

science computer again..hoho^^

                                                       ASSALAMUALAIKUM...HELLO....

i'm back..ha3... ni nk ckp pasal science comp lagi...kali ni about network...tau tak network ade bape jenis?ni nak habaq mai..

Network is classified into three types:
                                 1)Local Area Networks
                                 2)Metropolitan Area Networks
                                 3)Wide Area Networks


Ok...let me introduce you to LAN..local area network is a network that connect computers and devices in a limited geographical area such home,school and office building.The simplest form of LAN is connected two computer together.

                               
 There are two types of LAN:
1)Personal Area Network(PAN)-computer network used for communication  among computer and different information technological devices close to one person
2)Home Area Network(HAN)-residential LAN which is used for  communication at home


In the using of this network there're also advantages and disadvantages.So the advantages is easy to share devices such as printer and scanner.It is also easy to share data and the cost LAN setup is low.The disadvantages are the area covered by LAN is limited and if all computer running at one time the speed will reduced.

                                                         
                                           Now it's time for Metropolitan Area Network a.k.a  MAN...metropolitan area network is a high speed network that connects local area networks in a metropolitan area such as a city or town.
In MAN there're Campus Area Network(CAN)...it is a computer network made up of an interconnection of local area network within a limited geographical area.

                                                                                               
The advantages of using this network is efficiency and shared access.All the computer-owning have ability to go online while the disadvantages is it can be costly and the connection might be slow due to the many users.


huh..at last Wide Area Network...it is a network that covers a large geographic area using a communications channels that combines many types of media.


                                                  Under this WAN there're Enterprise Private Network(EPN)....network build by an enterprise to interconnect various company sites.There are also Virtual Private Network(VPN).It is a computer network in which some of the links between nodes are carried by open connections or virtual circuit in some larger networks.

The advantages of WAN is increase efficiency and ease of communication also lowered costs.Furthermore,the disadvantages is there are security problems and maintenance problem.The training cost is also high and the speed is slowest because there are many users.


                                                   
                            so ..ha3..memandangkan i learn science comp in english so kne la speaking london...he3..ni je la pasal network...hope u all get the information.......have a gud day



http://compnetworking.about.com/cs/lanvlanwan/g/bldef_lan.htm
http://en.wikipedia.org/wiki/Metropolitan_area_network
http://www.freewimaxinfo.com/metropolitan-area-network-man.html
http://in.answers.yahoo.com/question/index?qid=20110730011853AAFXzjp http://searchenterprisewan.techtarget.com/definition/WAN
http://compnetworking.about.com/cs/lanvlanwan/g/bldef_wan.htm