DSL full form or full name Digital Subscriber Line

DSL
Digital subscriber line (original name is digital subscriber loop) short name is DSL. Digital subscriber line is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line (ADSL), the most commonly installed DSL technology, for Internet access. DSL service can be delivered simultaneously with wired telephone service on the same telephone line. This is possible because DSL uses higher frequency bands for data. On the customer premises, a DSL filter on each non-DSL outlet blocks any high-frequency interference to enable simultaneous use of the voice and DSL services.

When the Internet was a relatively new part of people’s live getting connected was difficult. Dialing up and connecting to the server was slow the connection itself would be sluggish and the connection would block the phone line, so no one could call.

Aware that cable communication companies had a head start over them in terms of high-frequency, broadband provision. The telephone companies were desperate to provide high-speed Internet access. This was the commercial consideration that spurred them to create DSL (The Digital Subscriber Line)– a technology that used the as yet untapped potential of the copper wires already connecting the world.

The man recognized as the father of these technologies is Joseph Lechleider (Birth Year: 1933) of the U.S. firm Bellcore. He was the first to demonstrate that broadband signals could be sent through the copper lines along both high and low frequency bands. He also went on to develop the idea of an asymmetrical connection known as an ADSL. As the typical residential Internet user downloads much more data than he or she uploads (party due to the vast amount of multimedia content available on the Internet), the possibility of using more of the bandwidth and connection speed to download, rather than upload was a brilliant, yet practical, inspiration.

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