Cable internet
Cable is a way to provide internet services to homes and businesses through a coaxial cable. Because cable internet uses existing cable TV wires, it can service large areas without building new wires, especially in the United States.
Modem
When you subscribe to cable internet service they will send you a modem, the modem is like a translator, taking an analog signal and turning it into a digital signal that your computer can understand.
Speed
What speeds you will get depends on many things, such as the company or the speed package you subscribe to, but the general rule is, cable internet has a maximum speed of 1000 megabits per second.
Phone service
Cable internet can also carry phone calls through the internet, this is called VoIP which stands for 'Voice over Internet protocol' this is, however different than calls over a smart phone.
Cable internet providers
Major internet providers in the United States are: Charter Communications, Comcast, Cox, Mediacom, and Suddenlink.