Does your cable modem really make a difference? Here's what sets DOCSIS 3.0, 3.1 and the new 4.0 modems apart.

While a cellular modem plugs directly into the computer, smartphones and stand-alone broadband routers convert cellular signals into a Wi-Fi hotspot to connect to nearby devices. See cellular ...

(1) (Voice Over IP modem) A device that converts Internet-based voice service from the cable or telephone company to the user's telephones. Officially called an analog telephone adapter.