You browse the Internet, find interesting files, applications, open source software, movie trailers or even your favorite band’s songs. And you wish you could use them whenever you want and so you decide to download it.
Ever wondered what happens when you click on download? You send a request (few bytes of data) to the hosting server seeking its permission to access the file (or rather send you digital data). This request signal will be replied with an acknowledge signal from the server followed by the actual data requested for.
There is much more of communication engineering involved, but lets not dig deep into it.
Now that the actual transmission is taking place, what are the facts about the speed of transfer and data rates of transmission?
There is considerable variation of speed with the type of connection you use. If its dial up that you are using, you are actually sending digital data along with the voice data (at the same time). A s a result, they share the bandwidth available and so the speeds are slow. Whereas now we are using ISDN (Integrated signals digital networking) which was the major reason for the big boost in internet speeds....
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