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| So how do computers communicate over the network?. The methods used by computers and networks to communicate with each other is through network protocols. A network protocol is a set of rules for communicating between computers. Protocols govern format, timing, sequencing, and error control. Without these rules, the computer cannot make sense of the stream of incoming bits. ' (11) What is a protocol, really? It is software that resides either in a computer's memory or in the memory of a transmission device, like a network interface card. When data is ready for transmission, this software is executed. The software prepares data for transmission and sets the transmission in motion. At the receiving end, the software takes the data off the wire and prepares it for the computer by taking off all the information added by the transmitting end (12).There are different types of protocols used by different companies. TCP, TCP/IP, IPX/SPX, NetBEUI and NetBIOS. These protocols are used depending on which organisation or company owns it. The all facilitate the same thing in that they allow the communication of data on their network. The OSI model standards have helped with the different protocols and enable them all to be able to comunicate effectively. If we take for example the internet, we can see that there are a lot od different variety of computers and network all connected together in a harmonious and effecient way.
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