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 losing 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
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