Hardware processing touchscreen input.

Hardware managing keyboard input.

Hardware processing mouse input.

Hardware collecting sensor information.

Hardware regulating cooling-fan operation.

Hardware controlling power distribution.

Hardware managing battery operation.

Circuit managing battery charging.

Hardware monitoring battery conditions.

Circuit estimating remaining battery charge.

Battery-management system controlling battery cells.

Circuit equalizing individual battery-cell voltages.

Integrated circuit protecting electronic hardware.

Circuit controlling the order of power activation.

Controller allowing hardware replacement while powered.

Electronic switch controlling power to a load.

Circuit designed to draw controlled current.

Circuit designed to supply controlled current.

Circuit producing a stable reference voltage.

Stable voltage reference using semiconductor characteristics.

Protection feature that turns hardware off when overheated.

Circuit protecting against excessive voltage.

Circuit responding to excessively low voltage.

Circuit preventing damage from reversed power connections.

Hardware protecting against electrostatic discharge.

Transient suppressor protecting against voltage spikes.

Hardware securing a protective fuse.

Connector providing multiple screw or clamp terminals.

Terminal secured using a screw.

Terminal using spring pressure for electrical contact.

Electrical terminal attached by crimping.

Terminal with a circular mounting hole.

Fork-shaped electrical terminal.

Flat conductive terminal used for connections.

Row of conductive pins on a PCB.

Connector accepting header pins.

Small connector used to configure PCB settings.