system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What is a modem?


assistant
A modem was a device that let computer connect to the internet over a dial-up connection.  This connection is established and hosted through an ISP or Internet Service Provider.  The three most common types of modem connection are dial-up, DSL, or cable.  DSL was a lot faster than dial-up, and cable modem connection was the fastest.