How Asp.NET Handle Multiple Requests

I was wondering how Asp.NET handles multiple requests ? E.g : When 1000 users request a page from an Asp.net installed web server, are they queued and handled in order or is there any other way to simultaneously handle those requests ?

I found some articles but they were too deep and long, I need a couple of quick answers to my question?

Thank you very much.

Edit :

I was reading Threads in a C# book and I wondered how asp.net handles multiple requests. Is it creating a thread for each requests or putting them into a queue for later handling or any way else?