This question has 2 answers that I can see.
The first one would be a Dial Up Modem. These devices allow (or allowed, since they're pretty much obsolete) a computer to communicate over the phone lines and access the internet.
The second option for an answer would be a DSL Modem/Router. In a sense, a DSL (Standing for Digital Service Line) is a bit of a predecessor to traditional Dial Up, using a digital telephone line (However not the frequencies used for voice) to connect a computer or set of computers together and to the internet.
The modem is a device that allows a wide connection and communication from one computer to another, through telephone lines.
It is a device used in computing to convert digital signals into analog and viceversa, so that they can be transmitted in an intelligible way.
Therefore, we can conclude that a modem allows for integration in the way computers communicate through the conversion of analog signals to digital and viceversa.
Learn more about a modem here: https://brainly.com/question/12887070
