Wednesday, February 1

ADSL & DSL technologies

Digital Subscriber Line is a technology that links all telephone wires connecting most homes to their local switching center. DSL  technologies achieve high data rates by reducing the effects of noise, used advanced error detection and correction, in addition to supplying broadband to the home. DSL technology may be a component of large institutional networks, such as NHS network.

ADSL or ( Asymmetric Digital Subscriber Line ) is a version of DSL that became widespread in Europe in the early 2000s and is the most common broadband technology for home access in UK. The term asymmetric is used because the bit rate is significantly greater for data being sent to a user compared with data sent from the user. This asymmetryis acceptable for browsing web pages or downloading large files, but less for users who need to upload large files.