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Internet access may be the means by which individual terminals, computers, mobile devices, and specific geographic area networks are coupled to the global Internet. Basically, It is a source whereby Internet users can access Internet services. Internet access is usually sold by Internet Service Providers (ISPs) designed to use many different technologies offering a wide range of data rates for the end user. Consumer use first became popular through dial-up connections inside the 1980s and 1990s. By the first decade in the 21st century, many consumers had switched far from dial-up to dedicated connections, most Internet access products were being marketed while using the term "broadband", and broadband penetration was being treated being a key economic indicator.

Broadband Internet access, often shortened to just broadband plus known as high-speed Internet access, are services that supply bit-rates considerably higher than that available using a 56 kbit/s modem. In the U.S. National Broadband Plan of 2009, the Federal Communications Commission (FCC) defined broadband access as "Internet access that's always on and faster compared to the traditional dial-up access", although FCC has defined it differently through the years. The term broadband was originally a reference to multi-frequency communication, as opposed to narrowband or baseband. Broadband is currently a marketing term that telephone, cable, as well as other companies use to sell their more expensive higher data rate products.

Digital subscriber line (DSL, originally digital subscriber loop) is often a family of technologies that supply Internet access by transmitting digital data within the wires of the local telephone network. In telecommunications marketing, the word DSL is widely understood to mean asymmetric digital subscriber line (ADSL), essentially the most commonly installed DSL technology. DSL service is delivered simultaneously with wired telephone service about the same telephone line. This is possible because DSL uses frequency higher bands for data. On the customer premises, a DSL filter on each non-DSL outlet blocks any high frequency interference, to allow simultaneous use in the voice and DSL services or Internetanbieter vergleich.

The bit rate of consumer DSL services typically ranges from 256 kbit/s to 40 Mbit/s inside the direction on the customer (downstream), depending on DSL technology, line conditions, and service-level implementation. In ADSL, the info throughput inside the upstream direction, (the direction on the service provider) is leaner, hence the designation of asymmetric service. In symmetric digital subscriber line (SDSL) services, the downstream and upstream data rates are equal.