Microcontroller e telephone: o que têm em comum

1. Passo 1. Microcontroller — faz parte de — Remote control. A microcontroller sends the codes.
2. Passo 2. Remote control — tem como parte — Printed circuit board. Inside a remote is a circuit board with buttons and an infrared LED.
3. Passo 3. Printed circuit board — faz parte de — Mobile phone. All of a phone's parts are soldered onto a printed circuit board.
4. Passo 4. Mobile phone — evoluiu de — Telephone. A mobile phone keeps the function of a telephone, replacing the wire with a radio channel.

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