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The bandwidth of the transmission media The modulation encoding used
Asymmetric Digital Subscriber Line (ADSL) is a form of DSL, a data communications technology that enables faster data transmission than a conventional modem can provide. A modem which can do such a job is called an ADSL modem.
cable modem - A technologythat uses cable TV lines for data transmission
Television channels are used as data upload and download channels. Bandwidth is shared between subscribers in one area.
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Cable TV
The modem, which is short for modulator/demodulator, "packages" data according to a certain protocol for transmission to another computer, and it unpacks incoming data so the receiving computer can understand it.
The process of sending computer information from one computer to another through a modem is called data transmission. This involves the user encoding the data into a digital format, which is then modulated by the modem into a signal suitable for transmission over communication lines. The receiving modem demodulates the signal back into its original format, allowing the recipient computer to process the information. This entire process typically follows communication protocols to ensure data integrity and proper formatting.
A modem (Modulator-demodulator) is both. It allows you to input data (download) and output data (upload).
These are all computer and technology terminology. Analog and digital signals are used for data transmission, and ADSL refers to an Asymmetric Digital Subscriber Line modem.
There are many different protocols depending on transmission speed used, the type (phone MODEM, cable MODEM. etc.) and other conditions. There are far too many to list here.
To exchange data between two DTE devices