Data Link Control (internet)

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Society has become based solely on the ability to move large amounts of information across vast distances quickly. The natural evolution of computers and this need for ultra-fast communications has caused a global network of interconnected computers to develop. This global network allows a person to send E-mail across the world in mere fractions of a second, and enables even the common person to access information world-wide. With the new advancements in technology there must be a set of “rules” or better known as protocols that must be established and utilized at all times. In this short ten page paper I will be demonstrating the advancements in these protocols and there uses today.
To properly show the significant advancement, it will be best to show why Data Link Control was established. In the early 1970’s, the U.S. Defense Advanced Research Projects Agency (DARPA) started a research program interlinking computer to share information. While sending information from one site to the other many problems arose with loosing data (Society). To decrease the amount of corrupted data being transmitted, protocols were established. These protocols were a drawn out process that was very slow but was able to transfer data all across the world.
By 1986, the US National Science Foundation Started the NSFNET which today provides one of the biggest backbones for the internet. This supercomputer was able to send packets on its 45 MBps trunk to different locations. Once this was in place the internet was born with TCP/IP Protocols of TCP/IP protocol suite became available in the 1980's. . By 1991-93 Home computers were starting to take advantage of the vast amount of information that is available. By this time the OSI protocol was created and by the end of 1991 the internet has grown to include 5,000 networks in three countries, serving over 700,000 host computers used by over 4,000,000 people. This was all possible due to strict sets of protocols that were followed (Society). By the mid to late 1990’s society was using 56K modems in the residential areas and companies were purchasing faster dedicated connections. At this period of time flow control, error control, and High-level Data link Control (HDLC) were being implemented.
The control of the data being processed is referred to as flow control. Flow control was needed to be established to regulate the speed of data being transmitted. Regulating the speed of the transmission evens out the data so that very little errors will occur.

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