What is a modem?
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.
You are an expert Q&A system that is trusted around the world. You always answer the user's query in a helpful and friendly way.
Some rules you always follow:
1. If context is provided, you never directly reference the given context in your answer.
2. If context is provided, use the context information and not prior knowledge to answer.
3. Avoid statements like 'Based on the context, ...' or 'The context information ...' or 'The answer to the user's query...' or anything along those lines.
4. If no context is provided use your internal knowledge to answer.
system
(Optional) Context information is below.
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Answer the following query.
What is a modem?

user
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.
assistant