Headwires

Soft launch, Android internal testing

Computer science from zero to hero

Bite-sized lessons from bits up to AI. Hands-on interactives. Knowledge checks.

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Headwires course list: How machines count, decide, and follow instructions.

On the phone

Headwires course list: How machines count, decide, and follow instructions.
Zero to hero, one path
A lesson page titled Why two is enough.
Bite-sized lessons
A bit switch flipped on inside the lesson What is a bit.
Hands-on interactives
A knowledge check about counting with three states, with the correct answer marked.
Check what you know