Where can I find what is essentially smilebasic for Pc?

Sorry, the closest language on PC is probably QB64, and that is trying to be a QuickBasic/QBasic clone. They are both BASIC dialects but have some significant differences. One of which is how graphics are done and of course it has no media included. The best course of action is actually to learn a different programming language that is better supported on PC. After you learn one programming language it gets easier to pick up other ones. Two beginner friendly ones would be Lua with Love for graphics or Python and use Pygame for graphics. I think there are some Lua coders on the site, and the harvard cs50 introduction to game programming course on youtube uses it. Python is more respected and should be put on a resume if you learn it well. Of course if you want other people to play your games you may want to look at Javascript and maybe a library like Phaser. There is also P5JS which has a web editor and is used in the Coding Train videos on youtube. People are reluctant to download binaries anymore for fears of malware. Javascript is also good for a resume. If you are advanced there is C/C++, which has several graphics libraries such as SDL or SFML. There are also game engines like Godot, Unity, or Unreal. If you want to make something for a phone maybe Swift for Apple and Kotlin/Java for android. There is always new stuff to learn in programming which can be both wonderful and terrifying.