Command Prompt help. What is IPConfig?

When I type "IPConfig" (without the quotations) a few things come up. What is my IP Address, my "Subnet Mask" and my "Default Gateway"? What is my "Connection-specific DNS suffix"? What do all these things mean? What can they be used for? How would I use them for something,... show more When I type "IPConfig" (without the quotations) a few things come up. What is my IP Address, my "Subnet Mask" and my "Default Gateway"? What is my "Connection-specific DNS suffix"? What do all these things mean? What can they be used for? How would I use them for something, and what is their purpose? I'm just curious about these things, especially Command Prompt. Thank you very much. Oh, and by the way, I heard that there is a button combination that you can press in command prompt to make your computer make some harmless beeping noises. Any idea what these buttons are, and why the computer makes the noise? Thank you very much, everyone!
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