Computer Network
The definition of a computer network.
Computer Networking (Computer Network) to connect two or more computers together with a cable. Or other media. Enables computers to transfer information to each other in case of a connection between multiple computers. Machine to a large central computer. We refer to this as the central host computer (Host) and a small computer connected to the client (Client) network (Network) to link computers together to communicate. We can send building. Or across the city to the other side of the world. The data. All text, images, audio could be causing this. Quickly to users. The ability of these computer networks are important. And necessary for the use in various circles.
Why do we have to use the network. Computer system or network. We take a computer connection. We will take advantage of the system. What can or can not do. The use of resources. PC compatible (Resources Sharing) has helped. Cost. And increase ease of use, such as the use of space on the hard disk. And printer sharing to manage the operation of any computer. From the center (Centralized Management) as a Kraftwerk newsgroups. The right to access information. And can make a backup of each machine. Able to communicate. Within the network. (Communication) can take many forms such as email, chat (Chat), a teleconference. (Teleconference), and teleconferencing visual (Video Conference) the security of the data on the network (Network Security) as to identify those who have access to information in different levels of protection that are not permitted. Access to information. And provide protection. Important information. Provides endless entertainment. (Entertainment), as can be fun to play with many players. Also known as multi-player (Multi Player) is becoming popular in this time.
Common Internet applications (Internet Sharing) is connected to the Internet. From one machine on the network. Account with just one account. It gives the user many more. In the same network. Can use the Internet. With a virtual account.
Etc..
Network types.
Network To call a variety of ways, such as a connection (Topology) as a bus (bus), a star (star), ring (ring) or be raised by longtime size. Or the distance of the system as a LAN (LAN), WAN (WAN), Manchester (MAN) is a network technology that can also be referred to as divisions. In data transmission networks such as TCP / IP, network, IPX, SNA network or by the type of data. With transmission. Such a network. Audio and video.
We can also identify the network. The group used a network such as the Internet (Internet), extranet (Extranet), intranet (Intranet), Virtual Private Network (Virtual Private Network) or by way of physical connections. Such as fiber-optic network, dial-up network, wireless network, etc. to see that we can identify. Network But we will talk about ways to reach that network in any aspects, we classify the network. The third method is a popular way to form connections (Topology), communication patterns (Protocol), and network architecture. (Architecture).
Distribution network. Form connections (Topology) indicates the patterns that connect devices. The network together. The third method is popular formats.
A bus
Networks BUS topology is the topology model that has been the most popular source. From past to present. One reason is to be able to install, maintain and install equipment more easily. Does not require complicated techniques. Behavior of the network topology BUS is all devices or nodes each node. The network will be connected to the main line, called "bus" (BUS), when a node needs to send data to another node. Within the network. Information from the sender node. Is sent to the bus. In the form of a package. Each package will contain the location of Sender and receiver and internal communications bus cable can be two separate directions at the two sides of the bus to the end of the second side of the bus to see Boone Terminator (Terminator) acts absorption signal. To prevent signal reflection data. Access to the bus. Prevents collision of signals traveling on the other bus. Signal from the sender node. Upon entering the bus will flow through to the end of the second side of the bus, each node is connected to the bus. Will check to see if the destination. Package that comes with it. With their position or not. If yes, it will get that data into the node, but if not I will leave it to signal that all the nodes in the network can recognize the signs BUS data. But only a single node with the destination node. To get more of it.
Control BUS communication network has two types of central control. (Centralized), which has one node. Serves as the control center for communication within the network. This is mostly a file server. Distributed control. (Distributed) every node in the network. Will have the right to control the communications control center instead of just a single node. In general, a pair of nodes that are sending - get to the User to control the communication at that time, the advantages and disadvantages of bus topology.
A Star
The principle of sending and receiving data. Unlike the phone system. The control is done by a central station. Acts as a switch. All data on the network. Must pass a computer center (Center Comtuper) as a link of communication. That looks like a star (STAR) multi-pointed star with a central or hub via a point contact between all the nodes in the network, the center has served as the control center for all communications. In addition, the center also serves. Data-centric as well.
Internal communication network is second to STAR direction to allow only a single node only. Can send data to the network. So many chances. Node sends data into the network at the same time. To prevent the collision of data signals STAR network topology is the one that is commonly used today. Advantages of the STAR network, network setup and maintenance easier. If there are any nodes damaged. It can be easily verified. Central node and can be cut off from communication. In the network.
A Ring
RING network sends a message sent over the network. Information flows in the network. In the same direction as the ring or the RING itself without end. Terminator names or dates. Like a BUS network on each node or station. Miri is the first node to which the router will act any more necessary to communicate. In the header of the data package. For sending information from nodes. And is responsible for the data package. Flowing through the communication line. To verify that the data Sent to the node or not. If yes, it will copy all the data. Forwarded to the nodes of their own. But if not, it will release that information to the next node of the tree router.
Hybridge Topology
The mixed data communication networks between one or more networks. For accuracy. Depending on your needs and the overall organization.
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