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Hardware
Power...
Ports
Theory
Safety
100
also called a microprocessor or processor. The component where almost all processing of data and instructions takes place.
What is the central processing unit (CPU)?
100
a box inside the computer case that receives power and converts it to provide power to the motherboard and other installed devices.
What is a power supply?
100
a round 6-pin port used by a keyboard or mouse.
What is a PS/2 port?
100
Firmware that can control much of a computer’s input/output functions, such as communication with the keyboard and the monitor.
What is BIOS (basic input/output system)?
100
Static shielding bags that new computer components are shipped in.
What are antistatic bags?
200
a miniature circuit board installed on a motherboard to hold memory.
What is DIMM (dual inline memory module) [RAM]
200
Used by an older ATX power supply and motherboard and provided +3.3 volts, +5 volts, +12 volts, 12 volts, and an optional and rarely used 5 volts
What is a 20-pin P1 connector?
200
a 15-pin female port that transmits analog video.
What is a DB-15 port?
200
a circuit board inserted into a slot on the motherboard to enhance the capability of the computer.
What is an expansion card?
200
a fire extinguisher rated to put out electrical fires.
What is a Class C fire extinguisher?
300
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, hard disk drive.
What is a field replaceable unit (FRU)?
300
a connector on the motherboard used to provide additional power to the processor other than that provided by the P1 connector.
What is a 4-pin motherboard auxiliary connector?
300
a port that transmits digital or analog video.
What is a DVI (Digital Video Interface) port?
300
The main components installed in a computer case.
What are internal components?
300
another name for static electricity, which can damage chips and destroy motherboards, even though it might not be felt or seen with the naked eye.
What is electrostatic discharge (ESD)?
400
Software that is permanently stored in a chip.
What is firmware?
400
a switch on the back of the computer case where you can switch the input voltage to the power supply to 115 V used in the United States or 220 V used in other countries.
What is a dual voltage selector switch?
400
a digital audio and video interface standard currently used on televisions and other home theater equipment and expected to ultimately replace DVI.
What is an HDMI (High Definition Multimedia Interface) port?
400
The program in system BIOS that can change the values in CMOS RaM. also called CMOS setup.
What is a BIOS setup?
400
a strap you wear around your wrist that is attached to the computer case, ground mat, or another ground so that ESD is discharged from your body before you touch sensitive components inside a computer. also called static strap, ground strap, ESD bracelet.
What is a ground bracelet?
500
The main secondary storage device of a computer. Two technologies are currently used by hard drives: magnetic and solid state.
What is a hard disk drive?
500
a device that can test the output of each power cord coming from a power supply.
What is a power supply tester?
500
a port that looks like a large phone jack and is used by twisted-pair cable to connect to a wired network adapter or other hardware device. RJ stands for registered jack.
What is a RJ-45 port?
500
Loose cables or cords in a traffic area where people can trip over them.
What is a trip hazard?
500
a document that explains how to properly handle substances such as chemical solvents; it includes information such as physical data, toxicity, health effects, first aid, storage, disposal, and spill procedures.
What is a Material Safety Data Sheet (MSDS)?