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Question | Answer |
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field replaceable unit (FRU) | A component in a computer or device that can be replaced with a new component without sending the computer or device back to the manufacturer. Examples: power supply, DIMM, motherboard, floppy disk drive. |
FlexATX | A version of the ATX form factor that allows for maximum flexibility in the size and shape of cases and motherboards. FlexATX is ideal for custom systems. |
form factor | A set of specifications on the size, shape, and configuration of a computer hardware component such as a case, power supply, or motherboard. |
intelligent UPS | A UPS connected to a computer by way of a USB or serial cable so that software on the computer can monitor and control the UPS. Also called smart UPS. |
inverter | A device that converts DC to AC. |
joule | A measure of work or energy. One joule of energy produces one watt of power for one second. |
line conditioner | A device that regulates, or conditions, power, providing continuous voltage during brownouts and spikes. |
line-interactive UPS | A variation of a standby UPS that shortens switching time by always keeping the inverter that converts AC to DC working, so that there is no charge-up time for the inverter. |
low-profile case | Another term for a compact case. |
MicroATX | A version of the ATX form factor. MicroATX addresses some new technologies that were developed after the original introduction of ATX. |
Midsize towers | Also called midi-towers or mid-towers, are the most versatile and most popular tower case. |
multimeter | A more general-purpose tool that can measure several characteristics of electricity in a variety of devices. |
NLX | A low-end form factor that is similar to LPX but provides greater support for current and emerging processor technologies. NLX was designed for flexibility and efficiency of space. |
notebook case | A type of case used for portable notebook computers. |
ohm (Ω) | The standard unit of measurement for electrical resistance. Resistors are rated in ohms. |
overclocking | Running a processor, motherboard, or video card at a higher frequency than the manufacturer recommends and is not considered a best practice. It might also void the warranty of a component. |
P1 connector | Power connection on an ATX or BTX motherboard. |
POST (power-on self test) | A series of tests performed by the startup BIOS when you first turn on a computer. |
power conditioner | A line conditioner that regulates, or conditions, power, providing continuous voltage during brownouts. |