What common communication devices are used in homes to connect to the internet and remote networks and what capabilities do these devices provide?

A device is indeed a computer unit that can relay a signal throughout the phone, any contact cable or wirelessly. A modem is the best illustration of such a device of communication.

Explanation:

A device that transforms a computer's signals and transmits data over cell towers, known as Modem.

It stands for "Modulator and Demodulator" and are of two types such as: Internal and External. It is being used for accessing the site that modulates carrier tides to encode the transmitting data as well as demodulates arriving waves to decode the documentation they hold.

Other means of communication shall include:

So, it's the right answer.