NETWORK ???

This is my third post on my blog. On this post, I would like share something about a network that I had learned on subject computer science at this semester 2.

What is your first thinking on a network ??? Is it Internet ? or what ?

Alright, if we want to know something, we must know their definition first. So, I'll give you a definition of a network. A network is a collection of computer and devices connected together via communication devices and transmitting data. Usually, the connections between computers in a network are mad using radio waves and infrared signals. Network can be divide by two, First, network architecture and second, network topology.

Network architecture can be categories as peer-to-peer network and client/server network. Peer-to-peer network is a simple, inexpensive network that typically connects fewer than 10 computers. An architecture in which client is a computer request resources from the server. Then, in which server is a computer provides resources to clients.

Figure 1 : Example for peer-to-peer and client/server network
http://www.comptechdoc.org/independent/networking/guide/nettopology.html

Network topology refers to both the physical and logical layout of a network. Type of network topology can be divide into three which are star topology, bus topology and ring topology. Star topology can be explain as all the computers and devices (nodes) on the network connect to a central device, thus forming a star. Next, bus topology is consist of a single central cable (backbone) to which all computers and other devices connect. Ring topology also can be in short is a cable forms a closed loop (ring) with all computers and devices arranged along the ring.

Figure 2 : Example for ring, star, and bus topology
http://www.geocities.ws/cikkribena/networkarchitecture.html