Today .NET department meeting was devoted to problems of asynchronous programming and parallel code execution. Dmitry made a rich information presentation about various asynchronous programming models existing in .NET. Dmitry made a short preview of new C# 5 language features related to new async and await keywords. He also made a preview of parallel language integrated query extensions and Task Parallel Library Dataflow.

Topics discussed:

• Basic concepts of asynchronous programming (Process, Thread, Thread pool)
• How does operating system works with asynchronous input and output
• APM pattern
• Event based asynchrony
• Task based asynchrony
• New compiler features related to async and await keywords
• PLINQ
• Dataflow
• Synchronous vs. asynchronous server implementations and their scalability

There are some screenshots from presentation: