Definition of Internet Service

i Sean Gallup/Getty Images News/Getty Images

In order to connect to the Internet, you need to use an Internet service. Internet service provides a way for data to be transferred from Internet servers to your computer. An Internet service provider is a company that provides access to the Internet. Most ISPs require you to subscribe in order to use their services, but there are ways to connect to the Internet for free. Some of the most common ways to connect to the Internet are dial-up, DSL, cable and wireless services.

Dial-up

At one time, a dial-up account was the most common way to access the Internet. Accessing a dial-up connection requires you to use a landline telephone connection and a modem attached or connected to your computer. In order to establish the connection, you literally must instruct your computer to dial a telephone number provided by the ISP. A dial-up connection is the least expensive and slowest way to connect to the Internet. Another disadvantage of dial-up is that you cannot make or receive phone calls while connected to the Internet. Some dial-up ISPs offer free, limited Internet access.

DSL

A digital subscriber line is another way to connect to the Internet through a telephone connection, but the quality and speed of the connection is significantly greater than a dial-up connection. And unlike a dial-up connection, DSL is “always on,” which means you can still make and receive telephone calls with your land line telephone. One thing to consider is that DSL Internet services are not available in all areas.

Cable

A cable Internet connection is established by subscribing to an account with a local cable television provider and connecting a cable modem to your computer. Cable Internet connections are capable of transmitting data faster than a DSL connection. Like DSL, a cable Internet connection is always on and does not interfere with your telephone access. The cost of a subscription with a cable ISP can be equal to or greater than a DSL subscription.

Wireless

A wireless Internet connection does not require your desktop or notebook computer to be connected to telephone or cable wires. You simply need a modem and an account with a wireless Internet provider. In many areas, you can access a wireless connection free of charge. Many coffee shops, restaurants, public libraries and schools offer free wireless Internet connection.