🎯 Checkpoint: think like a computer
Why: Lock in the final pieces: logic gates and algorithms.
Unlocks: The finish line — and your first real code in Python: First Steps.
Last stop before the finish line. The previous checkpoint proved you know what the machine stores. This one proves you know how it thinks: three magic words that make every decision, and recipes precise enough for a mindless-but-lightning-fast cook. No new ideas — just show yourself you own them.
An AND circuit has two switches and a bulb. When does the bulb light up?
“Unlock the phone if the fingerprint matches OR the PIN is correct.” Which magic word is doing the work?
What exactly is an algorithm?
Guessing a number from 1 to 100: why does halving beat asking “is it 1? is it 2?…”?
Put the whole course in one sentence: a computer is…
Both checkpoints cleared 🏆 You now know more about what's inside the machine than most people who use one every day. One last lesson: seeing the whole journey — and the door it opens.