What is a web browser?
A web browser is an application graphical user interface window that allows you to interact with content from the internet.  It is used for accessing websites and there are many web browsers available today like mozilla firefox, google chrome, microsoft edge, and safari.  When a webpage is requested by the web browser files and data are retrieved from the web server and  then rendered as a webpage through the web browser.
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 web browser?

user
A web browser is an application graphical user interface window that allows you to interact with content from the internet.  It is used for accessing websites and there are many web browsers available today like mozilla firefox, google chrome, microsoft edge, and safari.  When a webpage is requested by the web browser files and data are retrieved from the web server and  then rendered as a webpage through the web browser.
assistant