docr provides a nice collection of playlists that neatly categorizes all its content. This makes it easy for anyone to learn something from the baseline all the way to the top. It;s also great that you can pick and choose which topic you want to focus on, if you are still unsure of the material.
- Satisfied YouTube Viewer
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Mathematics
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Python Programming
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Scratch Programming
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C Programming
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App Development
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Computer Organization
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Real-Time Operating Systems
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Computer Systems