The dial-up connection necessarily uses the telephone line to transmit the data, while the broadband uses different systems, in addition to the telephone, which allow much faster transmissions. On dial-up internet, data is transmitted in the same way as voice, which generates two consequences: you cannot talk on the phone during the connection and you use a “highway” that is sufficient for our conversations, but leaves something to be desired in the connection. time to pass the internet data. The broadband connection has much more space to transmit data, whether using different means – radio waves, satellite and cable TV – or even the telephone line itself, which, in this case, has many more “roads” enabled by the company telephone. It’s like broadband is a highway with 250 more lanes than the dial-up highway. Therefore, it is possible to connect and talk on the phone simultaneously.
If the telephone wire were a highway, broadband would take up every lane.
dial-up internet
JUST BY THE STORAGE
Telephone wire can transmit data on a variety of frequencies, but only frequencies between 1,000 and 4,000 hertz are good for a dial-up connection. This range of frequencies is, therefore, shared by the voice and the internet, that is, you can only use one at a time
Broadband Internet
BAND HELLO-HELLO
Broadband of the ADSL type (see below) also uses the telephone wire, but since it can use all frequencies, the band from 1 to 4 thousand hertz is used exclusively for telephone calls.
UP AND DOWN
The phone wire supports about 250 extra tracks, the size of the one reserved for the voice stream. Therefore, all frequencies between 1 and 1 million hertz are used to send and receive data, including voice. Since we do more downloads than uploads, there is more space reserved for “downloading” things than “uploading” things
Broadband can use different means for connection. Check the main options
ADSL
It is the connection that uses the telephone cord. The acronym stands for “asymmetrical digital subscriber line”. “Asymmetric” means that the download is faster than the upload. It can reach 8 Mbps (although Brazilian providers offer much less)
Wireless
Transmission by radio waves. It uses a specific modem and the user needs to have an antenna and a radio installed at home. It ends up being an expensive option, but the connection is very fast – 11 Mbps (millions of bits per second)
Satellite
It also uses radio waves and therefore has the same transmission potential as wireless (up to 11 Mbps). The advantage is that, via satellite, the connection does not suffer from environmental interference – from a mountain, for example -, which happens with wireless.
Cable
Just as ADSL uses different frequencies for data and voice over copper wire, cable connection splits frequencies for internet and TV channels. Except that the cable has much more ranges than the telephone wire and the connection can reach 30 Mbps