Some other videos which may be helpful:
-A video by me about binary, hex, two's complement, arithmetic etc: [ Ссылка ]
-Video by me about data representation (including fixed and floating point numbers): [ Ссылка ]
-Video partially about Nyquist Theorem where he explains why the theorem is what it is: [ Ссылка ]
-A good introduction to Boolean Algebra, though perhaps not using the notation that you might see in the exam: [ Ссылка ]
-Though aimed primarily at GCSE, other topics in this course I have covered on my channel already, so some parts of those GCSE videos might be helpful, though always compare the specifications to make sure you're learning the correct content!
Good luck!
