What is ADSL?
ADSL is an acronym of English Assymetrical Digital Subscriber Line, ie a technology that allows the use of telephone line to the digital transmission of data at high speed.
This is one of the most used models to connect to the Internet, because it has a fast access speed and relatively low prices.
Before the popularization of ADSL connections, still in the early stages of the spread of the Internet in Brazil, access to the world wide web was done through dial up connections. These types of connections were very slow, supporting only 56 kbps (kilobits per second), leaving the telephone line that was being used busy and unusable to receive or make calls.
The ADSL technology, however, has existed since 1989 as an alternative to improve the quality of Internet connections, making them faster, and vacating the line for phone calls.
Currently, there are two main variations of this technology: ADSL, ADSL 2+. The big difference between the two technologies of data transmission is in the download rate. While ADSL allows up to 8 Mbps (megabytes per second), ADSL 2+ reaches 24 Mbps, but without changing the upload rate for both.
These are speed gains that can reach 3557.14%, compared to the connection through a 56 kbps modem (the old “dial-up connection”).