| A | B |
|---|
| Computer Case | Contains the framework to support the internal components of a computer while providing an enclosure for added protection |
| Power Supply | Converts alternating current power from the wall socket into direct current |
| Form Factor | The size and layout of a case |
| Uninterruptible Power Supply (UPS) | A device that maintains a continuous supply of electric power to connected equipment |
| Keyed Connector | Connector designed to be inserted in only one direction |
| Molex Connector | Connects to optical drives, hard drives, or other devices using older technology |
| Berg Connector | Connects to a floppy drive and is smaller than a Molex |
| SATA Connector | Connects to an optical drive or hard drive is wider and thinner than molex |
| 20-pin or 24-pin Connector | Connects the power supply to the motherboard |
| Voltage | measure of force required to push electrons through a circuit |
| Current | measure of the amount of electrons going through a circuit |
| Power | measure of the pressure required to push electrons through a circuit |
| Resistance | the opposition to the flow of current in a circuit |
| Ohm's Law | expresses how three of the terms relate to each other |
| 4-pin to 8-pin Auxiliary Power Connector | Has 2 rows of 2 to 4 pins and supplies power to all all areas of the motherboard |
| 6/8-pin PCIe Power Connector | Has 2 rows of 3 to 4 pins and supplies power to other internal components |
| Hardware | The physical equipment of a computer system |
| Software | Includes the operating system and programs |
