- The structured knowledge tree gives you the full picture of computer science.
- The expandable and collapsible knowledge tree lets you know what areas of computer science you are studying, and lets you know related subjects.
- Subjects in each computer science include content, photos and video links.
- Beginning with an introduction to computer science, you can learn each of the sub-subjects of theoretical computer science, computer systems, and computer applications.
- The content of each subject outlines important points. If you want to learn more about the subject, please open the video link or wikipedia link in the subject.

- This app has ads.
- This app has in-app billing to remove ads.
- You can view all content, photos, and video links regardless of whether or not in-app payments are made.

Welcome to the world of computer science!