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Which part of how a computer works still feels like magic to you?

We launch Chip Builder on Product Hunt on November 2. It is a puzzle game where you start with one logic gate and finish with a working CPU that you wired yourself.

While we built it, we kept asking one question: which step makes people say "oh, so that's how it works"? Maybe it is the adder, the first flip-flop that remembers a bit, or the moment a CPU runs its first program.

We would love to hear from you:

1. Which part of a computer still feels like magic to you?

Chip Builder - Puzzle game where you build a working CPU from logic gates

ChipBuilder is a story driven puzzle game about digital logic. Start with a single AND gate and work your way up through registers, memory, and a full ALU, until you have wired together a working CPU with your own hands.