1.  Joshua Goodman Group Program Manager Microsoft Corporation

2. .NET 1.0.NET 1.1.NET 2.0 3.03.0 3.53.5.NET 4.0 2002200320052008 CTP!2005-08

3. Base Class Libraries The CLR JIT & NGEN Garbage Collector Security Model Exception Handling Loader & Binder Profiling& Debugging APIs WPF Win Forms DLR Dynamic Language Runtime DLR Dynamic Language Runtime ASP. NET WCF And more! LINQ

7. Thread [] threads = new Thread[8]; for (int i=0; i<8; i++) { Worker worker = new Worker(); threads[i] = new ThreadStart(worker.Work); threads[i].Start(); worker.identity =i; } Code from an Outlook addin our executives used

8. Thread [] threads = new Thread[8]; for (int i=0; i<8; i++) { Worker worker = new Worker(); threads[i] = new ThreadStart(worker.Work); threads[i].Start(); worker.identity =i; } Code from an Outlook addin our executives used

9. .NET 1.0.NET 1.1.NET 2.0 3.03.0 3.53.5.NET 4.0

10. .NET 2.0.NET 4.0 2.0 addin 3.0 addin 3.03.0 3.53.5 3.5 addin 4.0 addin Host Process (e.g. Outlook) i i

19. public Tuple DivAndRemainder(Int32 i, Int32 j) { return new Tuple.Create(i/j, i%j); } // An example of someone accessing items in a tuple. for (Int16 i = 0; i <= 25; i++) { for (Int16 j = 1; j <= 5; j++) { var tuple = DivAndRemainder(i,j); Console.WriteLine("{0}\t{1}\t{2}\t{3}\n", i, j, tuple.item1, tuple.item2); }

26. Parallel.For(0, n, i => work(i)); Parallel.ForEach(data, e => work(e));.AsParallel() var results = from item in shows.AsParallel() where item.Description.Contains(keyword) && item.Year > startYear orderby item.StartTime ascending select item;

27. Parallel.For(0, n, i => work(i)); Parallel.ForEach(data, e => work(e));

28. Ephemeral Segment Other Segments Generation 0, 1 and parts of Generation 2 live here Most of Generation 2 lives here

29. Ephemeral Segment Other Segments Ephemeral Segment Other Segments Generation 0, 1 and parts of Generation 2 live here Most of Generation 2 lives here

31. Ephemeral Segment Other Segments Generation 0, 1 and parts of Generation 2 live here Most of Generation 2 lives here

32. Raw latency in microseconds Background GC Concurrent GC Profiling samples of latency during application execution

36. public void FileSave(String name) { try { FileStream fs = new FileStream(name, FileMode.Create); } catch(Exception e) { MessageBox.Show("File Open Error"); throw new Exception(IOException); }

37. public void FileSave(String name) { try { FileStream fs = new FileStream(name, FileMode.Create); } catch(Exception e) { MessageBox.Show("File Open Error"); throw new Exception(IOException); }

45. public void BuyMoreStuff(Item[] cart, ref Decimal totalCost, Item i) { CodeContract.Requires(totalCost >=0); CodeContract.Requires(cart != null); CodeContract.Requires(CodeContract.ForAll(cart, s => s != i)); CodeContract.Ensures(CodeContract.Exists(cart, s => s == i); CodeContract.Ensures(totalCost >= CodeContract.OldValue(totalCost)); CodeContract.EnsuresOnThrow ( totalCost == CodeContract.OldValue(totalCost)); // Do some stuff … }

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