How good is windows in regards to that stuff?Not sure now, but it was terrible before. Windows didn't really properly multi task until recently.
The OS has to basically switch from a process to itself to a process every time interval.I don't remember it that much, but memory management was interesting. The OS, heap, etc. So much stuff I forgot but vaguely remember.
There's also special permissions that the OS has to manage to ensure that software is limited to it's own space, but also able to expand that space to look infinite.
Have to program a shell.Command prompt?