Ozaria is a comprehensive collection of several computer science textbooks. It is a program used in many countries around the world, as its excellent content is designed to help children learn computer science without confusion, no matter how difficult the subject matter. You can try the first chapter for free, which is a great way to get a feel for what it is all about. Or, you can study further with me through my lessons.
Software: Ozaria Hardware: Laptop
If you really want to learn Computer Science, I recommend using Ozaria. This application is student- and teacher-friendly, and after completing the entire Ozaria course, further education in computer science becomes much easier to pursue.