Friday, September 25, 2009

the importance of internet..

After the WTC attacks, the Internet played a key role in keeping communication going, performing as an efficient and stable network for thousands of effected workers in lower Manhattan when desk phones and cell phones had failed.
Unlike a telephone call, which requires a direct circuit connection between two telephone sets, data sent over the Internet consists of discrete packets that can follow different channels in a sequence over time and rejoin at the final destination, in a process known as packet switching. For that reason, important information was able to flow around damaged or destroyed cables and telephone switching equipment Internet ..
futhermore,for students,they can learn something from internet like English Language..Most of website in internet are in english language so indirect way they can learn the language..
The conclusion is,internet have more advantage if we used in the right way..

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