Cable internet does indeed use the same coaxial cable infrastructure that is also typically used for cable television. This is one reason why cable internet is widely available, as much of the infrastructure was already in place to provide cable TV. Cable internet is known for providing high-speed broadband internet access through the shared infrastructure, and its performance can be affected by the number of users simultaneously accessing the service in a certain area. This setup differs from DSL, which uses phone lines, and fiber, which uses optical fiber cables for data transmission.