Unit 3.1 vocab Cybersecurity

Power Supply Unit

Delivers low-voltage direct current power to computer components. Has a rectifier, transformers, and regulators.

DC Power

Direct current power

AC Power

Alternate current power

Rectifier

Converts AC power to DC power.

Transformer

Steps down power to lower voltages.

Voltage Regulator

Ensures consistent output with filters and regulators.

Wattage Rating

Amount of watts that can be outputted. Watts measured by voltage x current.

Rail

A PSU wire that provides current at a specific voltage.

P1 Connection

The main 24 pin power connector for the motherboard. Used to be 20 pin, some today are 20+4 so they can support legacy and up to date connectors.

Modular PSU

Has removable power cords, so that unnecessary ones may be removed.

Redundant Power Supply

A backup PSU that can be switched on automatically. if the main PSU fails.

Backplane

A circuit board that provides the electrical connections between different components.

Hot-Swappable

The ability for faulty units to be switched or repaired without the opening of the case.

Heat Sink

Metal plate that absorbs heat.

Thermal Paste

Connect heat sinks to fans to eliminate air gaps and increase heat transfer.

Passive Cooling

Passive heat sinks do not need a component and are larger.

Active Cooling

Active heat sinks are smaller, can be connected to components, and generally use a fan.

Liquid Cooling

Liquid, usually water, is pumped through the chassis for more efficient cooling. Must be drained, cleaned, and repumped every once in a while.