There are several basic types of ISP, starting with the two types: dial-up which only connects when a person initiates it and broadband (in which the connection is always on). The basic types of service include digital subscriber line (DSL), cable, fiber optic service (FiOS), wireless (Wi-Fi), satellite, and cellular. Each service has a varying degree of technology behind it. This can affect speed and download capabilities, but often the differences can be negligible. All provide a reasonable quality of service. The least effective is satellite service, which is mostly used in rural areas that lack real internet access. Speed, limited access, and bandwidth limitations are normal with satellite internet. You also might not have 24 hour access. All the rest provide reasonable to excellent internet access.