Collect or create binary numbers content

[illicitonion]

We need prep material and exercises for understanding binary numbers

Partially we want this knowledge so that we can rely on it in the future

Mostly we want our trainees to feel confident and not intimidated by this reasonably simple concept, and not feel othered when everyone around them happens to know it.

Possibly we want to mostly rely on How Computers Work for this, but if so, we need to get rights to use it.