Fax e personal computer: o que têm em comum

1. Passo 1. Fax — utiliza — Photodiode. Scanning with a photocell.
2. Passo 2. Photodiode — faz parte de — Image sensor. A sensor pixel is a photodiode.
3. Passo 3. Image sensor — faz parte de — Computer mouse. The motion sensor is a tiny camera.
4. Passo 4. Computer mouse — faz parte de — Personal computer. A mouse.

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