Learn it by
doing it.

Build fluency with binary and hexadecimal registers through generated GCSE and AS questions.

Paint a bitmap, change its colour depth, and compare normal, RLE and Huffman encoding.

Change sample rate and resolution, then compare the reconstructed signal visually and by listening.

Corrupt frames in flight and watch parity detection and automatic repeat requests respond.

Advance one clock tick at a time and follow data across CPU pathways and system buses.

Build the software layers, power on the system and test whether an application can run.

Create realistic workloads and watch pages move between storage, RAM, page file and cache.