Von Neumann architecture and bellows: what they have in common

1. Step 1. Von Neumann architecture — is used in — Computer. Most computers store program and data in a shared memory.
2. Step 2. Computer — has part — Keyboard. The keyboard is the main input device.
3. Step 3. Keyboard — is part of — Pipe organ. Manuals were the first keyboards.
4. Step 4. Pipe organ — has part — Bellows. Bellows supply the air.

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