What is the modem for?
enhance the Wi-Fi network signal
a device that provides access to the Internet
sending and receiving mail
The information sent over phone and cable lines are analog waves. So your modem takes the analog waves, changes it to digital and delivers it to your computer. In other words, your modem will connect you to the internet so that you can watch videos, upload videos, check emails, play on Facebook and anything else that you’d like to do online.