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43 Cards in this Set
- Front
- Back
active backplane
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a type of backplane system in which there is some circuitry, including bus connectors, buffers, and driver circuits, on the backplane
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AC( Alternating current)
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current that cycles back and forth
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US Standard AC wall voltage
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between 110-115V
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Europe standard AC wall voltage
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220V
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Amp
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an ampere measures electrical current. One volt across a resistance of one Ohm will produce a flow of one Amp
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AT;also called full AT
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a form factor; generally no longer produced; in which the motherboard requires a full size case
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ATX
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THE most common form factor for PC's still in use.
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ATX 12V power supply
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provides a 12V power cord with a 4-pin connector to be used by the auxiliary 4-pin power connector on motherboards used to provide extra power for processors
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Baby AT
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a improved and more flexible version of the AT form factor. The industry standard for approx. 1993-1997 and can fit into some ATX cases
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backplane system
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a form factor in which there is no true motherboard. INstead motherboard components are included on an adaptor card plugged into a slot on a board called a backplane
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brownouts
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temporary reductions in voltage, which sometimes causes data loss
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BTX ( Balanced Technology Extended )
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the latest form factor expected to replace ATX. Has higher quality fans and improved structural support for the motherboard
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capacitor
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can maintain an electrical charge for a period of time and is used to smooth out the flow of electrical current
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clamping voltage
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THE max voltage allowed through a surge suppressor
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Compact Case; also called a low profile or slimline case
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follow either the NLX, LPX, or Mini LPX form factor
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data line protector
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a surge protector designed to work with at telephone line to a modem
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diode
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a device that allows electricity to flow in only one direction. Used in a rectifier circuit
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(DC) direct current
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Current that only travels in one direction. PC's power supplies transform AC to low DC
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Display Power Management Signaling (DPMS)
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Energy star standard specifications that allow for the video card and monitor to go into sleep mode simultaneously
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(EMI) Electromagnetic Interference
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a magnetic field produced as a side effect from the flow of electricity. EMI can cause corrupted data in data lines that are not properly shielded
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Field Replaceable Unit (FRU)
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parts that can be replaced with out going to the shop
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Flex ATX
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a version of the ATX form factor that allows for max flexibility in the size and shape of cases and motherboards. is ideal for custom systems
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Form Factor
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a set of specifications on the size, shape, and configuration of a computer hardware component such as a case, power supply, or motherboard
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Intelligent UPS
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connected to the computer by the way of a USB or serial cable so that software on the computer can monitor and control the UPS
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line conditioner
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a device that regulates, or conditions, power, providing continuous voltage during brownouts and spikes
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line interactive
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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
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LPX
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a form factor in which expansion cards are mounted on a riser card that plugs into a motherboard. The expansion cards in LPX systems are mounted parallel to the motherboard, rather than perpendicular to it as in AT and ATX systems
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Micro ATX
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addresses some new technologies that were developed agter the orginal into of ATX
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Mini-ATX
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a smaller ATX board that can be used with regular ATX cases and power supplies
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MIni LPX
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a smaller version of the LPX motherboard
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NLX
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a low end form factor that is similar to LPX but provides greater support for current and emerging processor technologies,
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ohm
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the standard unit of measurement for electrical resistance.
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P1 connector
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Power connection on an ATX or BTX motherboard
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P8 Connector
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One or two power connectors on a AT mohterboard
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P9 connector
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one of two power connectors on a AT mother board
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passive backplane
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this backplane contains no circuitry, it is all contained on a motherboard connected into a backplane
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Power Conditioner
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a line conditioner that regulates power providing continuous voltage during a brownout
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rectifier
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an electrical device that converts AC to DC
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resistor
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resists or opposes the flow of electricity.
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riser card
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a card that plugs into a motherboard and allows for an expansion cards to be mounted parallel to the motherboard
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soft switch or soft power
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a feature on the ATX or BTX system that allows and OS to power down the system and allows for activity such as keystroke and network activity to power up the system.
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transformer
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changes the ratio of current to voltage.
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transistor
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regulates electricity and act as a logical gate or switch for an electrical signal
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