Card payment terminal e telephone: o que têm em comum

1. Passo 1. Card payment terminal — faz parte de — Self-checkout. Card reader.
2. Passo 2. Self-checkout — tem como parte — Touch layer (capacitive). A touchscreen.
3. Passo 3. Touch layer (capacitive) — faz parte de — Tela. Under the glass is a touch layer that registers touches.
4. Passo 4. Tela — faz parte de — Mobile phone. The phone's screen shows the number, messages and menus.
5. Passo 5. 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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