What is a computer network?
A computer network are groups of computers than can communicate with each other through a LAN or Local Area Network.  In the early days of networking they all had to be hard wired and with the development of newer technology networks could communicate and be setup over wireless.  Computer networks also share data and devices with each other.  For example a shared printer can be used by multiple devices on the same computer network.
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 computer network?

user
A computer network are groups of computers than can communicate with each other through a LAN or Local Area Network.  In the early days of networking they all had to be hard wired and with the development of newer technology networks could communicate and be setup over wireless.  Computer networks also share data and devices with each other.  For example a shared printer can be used by multiple devices on the same computer network.
assistant