For many decades I worked as a software engineer, and I was quite passionate about IT concepts. I attempted to make some tutorials to share my experience. Alas back then malevolent assholes were doxxing me to hate groups and so I was trying to retain anonymity to avoid them flag all my Youtubes.
Here are some samples I kept and the source files are also available on this site now.
This one was accessed many times from Microsoft Developer network and had positive responses on Youtube despite the dreadful disguised voice. Youtube recently declared it advertizer unfriendly. I moved it to Vimeo, but as it's for Windows XP, it's just out dated now.