classification of computer network

Classification of computer network is divided into:A. Based on geographical, computer networks are divided into a local area network or Local Area Network (LAN), metropolitan area networks or Metropolitan Area Network (MAN) and wide area network or wide area network (WAN). Local area network]] is a private network inside a building or place that measures up to some 1-10 kilometers. LAN is often used to connect personal computers and work stations (workstation) in a corporate office or factories in order to use shared resources (eg printers (printers) and exchange information. While the metropolitan area network is a LAN network expansion that includes a city ample, consisting of dozens of buildings within 10-50 miles. cable transmission used is a fiber optic cable (Coaxial Cable) wide area network is a network of intercity, inter-provincial, inter-state, and even between continents. distance can cover the whole world, for example, a network that connects all the banks in Indonesia, or the network that connects all Indonesian Representative Office in the world. [8] is the main transmission medium of communication via satellite, but many rely on fiber-optic connections between countries. [2. By function, is divided into client-server network (Client-server) and End to end Network (Peer-to-peer). [8] the client-server networks on a single computer ddasaranya prepared a waiter (server) from another computer as a client (client). [8] All resources service request from a client computer must be passed to the computer waiter, waiter computer that will manage the service. [8] If the communication is very busy service requests can even put more than one computer into a waiter, so there is a division of tasks, such as file-server, print-server, database server and so on. [8] Of course waiter computer configuration is usually more than the client computer's configuration in terms of memory capacity, hard disk space {disk), and the speed prosessornya. [ 8] While the network end to end is indicated by the computers to support each other, so each computer can request the use of shared resources from other computers, so too must be ready to serve requests from other computers. [8] The network model is usually only applied to the amount computer that is not too much, maximum 25, because the communication would be complicated and bogged down when the computer too much. [8]3. Based on network topology, network computers can be distinguished [3]:A. Bus topology2. Star topology3. Ring topology4. Mesh topology5. Tree topology6. Linear topology4. Based on the distribution of sources of information / dataA. Centralized networkThis network consists of the client computer and the waiter where the client computer that serves as an intermediary to access sources of information / data from one computer waiter. [9]2. Distributed networkIs a combination of several centralized network so that there are several interconnected computer waiter with clients to form a specific network system. [9]5. Based on data transmission mediaA. Wired Network (Wired Network)

 In this network, to connect one computer to another computer connecting a network cable is required. [9] The cable network is working to send the information in the form of electrical signals between a computer network. [9]A. Wireless network (Wi-Fi)Network is a form of electromagnetic waves with the medium. [9] In this network does not need wires to connect between computers because it uses electromagnetic waves to send signals between the network computer information. [9]