微软开源放出的一个操作系统源代码，需要.NET Framework3.5-My Operating System is to hopefully become a full operating system. Current featues include the Black Dragon Web browser, calculator, .Wav media player, Stop watch, and many other extras. Comments and suggestions

一个小的网页计算器，用asp实现的，主要用c#实现。-A small web page calculator, asp, mainly with C#.