I am a programmer and developer of more than 30 years' experience.

Began as an electronics designer, but soon started assembly programming, and then C++, Win32 API (still my favorites), Java, Android apps, C# Desktop applications on security, C# ASP.NET classic, C# ASP.NET MVC, and now I am busy with ASP.NET Core.

I have a classroom teaching experience of about 20 years.

(The presentation software as well as the audio/video recording software used in these tutorials have been written by me. The presentation software is in C# WinForms + Win32 API interop, and the audio/video recorders are C++ WinRT based)