IT Vocab PC 8

Question 1

The flow of negatively charged particles through matter

Answer 1

electricity

Question 2

Unit of measure for electrical current

Answer 2

Amps

Question 3

The voltage differential between any two objects, one of which is frequently ground or earth, resulting in a degree of attraction for the electrons to move from one of the objects to the other

Answer 3

electrical potential

Question 4

Unit of energy describing how much energy a surge suppressor can handle before it fails

Answer 4

joule

Question 5

Connects the cable supplying AC power from the wall outlet into the power supply

Answer 5

IEC-320

Question 6

A connector used to create more connections to power all the devices in a PC

Answer 6

splitter

Question 7

Device that supplies continuous clean power to a computer system the whole time the computer is on. Protects against power outages and sags

Answer 7

uninterruptible power supply (UPS)

Question 8

15-pin, L-shaped connector used that supports hot-swappable

Answer 8

SATA power connector

Question 9

Electrical interference from one device to another, resulting in poor performance of the device being interfered with

Answer 9

Electromagnetic interference

Question 10

Component in a CRT monitor that has very high voltages of electricity flowing through it

Answer 10

high voltage anode

Question 11

Device used to measure voltage, amperage, and resistance

Answer 11

multimeter

Question 12

Provides the electrical power for a PC. Converts standard AC power into various voltages of DC electricity

Answer 12

power supply unit

Question 13

Type of electricity in which the flow of electrons is a complete circle in one direction

Answer 13

direct current

Question 14

the wire which helps excess electricity to return safely to the ground

Answer 14

ground

Question 15

type of electricity in which the flow of electrons alternates direction, back and forth in a current

Answer 15

alternating current

Question 16

large sags in electricity

Answer 16

brownouts

Question 17

measurement of the amps and volts needed for a particular device to function

Answer 17

watts (W)

Question 18

Uncontrolled rush of electrons from one object to another. A real menace to PCs, as it can cause permanent damage to semiconductors

Answer 18

electrostatic discharge

Question 19

Amount of electrons moving past a certain point on a wire; measured in units called amperes

Answer 19

current

Question 20

memory that must have constant electricity to retain data

Answer 20

volatile

Question 21

type of power supply that works with either 110- or 220- volts outlets

Answer 21

dual-voltage

Question 22

Difficulty in making electricity flow through a material, measured in ohms

Answer 22

resistance

Question 23

the test using a multimeter which checks whether electrons can flow from one end of the wire to the other

Answer 23

continuity

Question 24

Metal plates that cover up unused expansion slots on the back of a PC

Answer 24

Slot covers

Question 25

Inexpensive device that protects your computer from voltage spikes

Answer 25

surge suppressors

Question 26

Measurement of the pressure of the electrons passing through a wire

Answer 26

voltage