Скачать или смотреть Learn Computer Science concepts for free

All the websites described are tried by me you can rely on them. At the end of video, there are some tips to get updated about other free resources.

List of websites as mentioned:

Udacity - https://www.classcentral.com/provider...
Harward - https://online-learning.harvard.edu/c...
Khan Academy - https://www.khanacademy.org/
Scrimba - https://scrimba.com/
Stanford - https://online.stanford.edu/free-courses
coursera - https://www.coursera.org/courses?quer...
Interviewbit - https://www.interviewbit.com/
Scaler - https://www.scaler.com/
Durgasoft -    / durgasoftware  
CognitiveClass.ai (IBM) - https://cognitiveclass.ai/courses
Microsoft Visual Studio - https://visualstudio.microsoft.com/
Progate - https://progate.com/