1 technologies. An introduction to digital subscriber line (DSL) technology transforms a regular telephone line into a broadband communications link, much like adding express lanes to an existing highway. DSL increases data transmission rates by a factor of twenty or more by sending signals in previously unused high frequencies. DSL technology has added a new twist to the utility of twisted pair telephone lines. DSL is a family of technologies that provide access to the Internet by transmitting digital data over the wires of a local telephone network. In telecommunications marketing, the term DSL broadly refers to asymmetric digital subscriber line (ADSL), the most commonly installed DSL technology. DSL service is provided simultaneously with landline telephone service on the same telephone line. This is possible because DSL uses higher frequency bands for data. At the customer's location, a DSL filter on each non-DSL outlet blocks any high-frequency interference, to allow simultaneous use of voice and DSL services.2. The application of technology: where, how it works and who uses it. Where, who uses it? This DSLDSL digital subscriber line technology is suitable for households and small businesses, particularly in rural areas, which may have access to other types of Internet services. Just like cable Internet, DSL is also very suitable for customers who want to use the Internet with a fairly economical plan. Although DSL is slower than cable Internet, it is a speed gap with much more economical access than cable Internet. DSL service providers rarely have data available, so DSL is ideal for those who spend a lot of time online each day, such as small businesses or homes. In addition, with DSL technology, it can attract...... middle of paper ...... what can be done to DSL technology, it is one of the services that allows users to communicate simultaneously with the Internet and the telephone line without any interference between the Internet line and the line, etc. In addition, the speed of DSL is much higher than that of a modem service. In addition to this, the price of this DSL plan is much cheaper than others and it is very affordable for customers who want to surf the Internet in a cheap and easy way. However, this DSL harness still has disadvantages and advantages and there is still a much better and faster Internet connection than DSL services such as Unifi, WiMAX, etc.8. Referenceshttp://en.wikipedia.org/wiki/Digital_subscriber_linehttp://compnetworking.about.com/od/dsldigitalsubscriberline/f/dslspeed.htmhttp://compnetworking.about.com/od/dslvscablemodem/a/speedcompare.htmPaper Checker