Touch sensor detecting changes in electrical capacitance.

Condenser microphone using permanently polarized material.

Small memory historically storing firmware configuration settings.

Hardware that reads and communicates with smart cards.

Touch sensor detecting pressure between conductive layers.

Microphone using a thin conductive ribbon as its sensing element.

Nonvolatile memory storing BIOS firmware.

Hardware controlling near-field communication.

Hardware generating tactile feedback.

Electroacoustic device converting electrical signals into sound.