Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
80 Cards in this Set
- Front
- Back
|
4-pin motherboard auxiliary connector |
a connector on the motherboard used to provide addt'l power to the processor other than that provided by the P1 connector |
|
|
4-pin auxiliary |
|
|
8-pin motherboard auxiliary connector |
a connector on the motherboard used to provide addt'l power to the processor other than that provided by the P1 connector |
|
|
8-pin auxiliary |
|
|
20-pin P1 connector |
used by an older ATX power supply and mobo and provided +3.3v, +5v, +12v, -12v and -5v |
|
|
20-pin P1 connector |
|
|
24-pin P1 connector |
used by ATX version 2.2 power supply and motherboard and provides addt'l power for PCIe slots |
|
|
24-pin P1 connector |
|
|
20+4 pin P1 connector |
|
|
alternating current (AC) |
current that cycles back and forth rather than treling in only one direction. in the US, the AC voltage from a wall outlet is between 110-115v. in Europe it is 220v |
|
|
amp |
a measure of electrical current |
|
|
tower case |
upright case around 2'. often servers; has space for upgrading |
|
|
desktop case |
cpu case that may lie flat |
|
|
VGA port |
Video Graphics Array - aka, DB15 port 15-pin female poert for analog video |
|
|
S-Video port |
4-pin or 7-pin port used to connect to TV 4-pin is more common |
|
|
DVI port |
Digital Video Interface - transmits digital or analog video |
|
|
HDMI port |
High Definition Multimedia Interface - transmits digital video and audio |
|
|
DisplayPort |
transmits digital video and audio. slowly replacing VGA and DVI |
|
|
Thunderbolt |
transmits video and data. shaped the same as DisplayPort and is compatible |
|
|
network port/ ethernet port/ RJ-45 |
used by a network cable to connect to the wired network. Fast Ethernet ports run at 100Mbps, and Gigabit Ethernet at 1000Mbps |
|
|
audio ports |
system usually has three or more. audio in, out and stereo out are common |
|
|
S/PDIF sound port |
Sony-Phillips Digital Interface - provides digital output and the best signal quality |
|
|
USB port |
Universal Serial Bus - multipurpose I/O port. 1.0, 2.0 hi-speed, 3.0 super-speed |
|
|
FireWire port |
aka, IEEE1394 - used for hish-speed multimedia devices |
|
|
eSata |
external SATA - used by an external HDD. faster than FireWire |
|
|
PS/2 port |
aka mini-DIN - round, 6-pin port used by keyboard or mouse. purple for keyboard, green for mouse. being replaced by USB |
|
|
serial port |
aka DB9 - 9-pin male port used on older computer |
|
|
parallel port |
25 pin female port used by older printers |
|
|
modem port |
aka RJ-11 - used to connect dial-up phone lines to computers |
|
|
internal components |
parts inside the case |
|
|
motherboard |
main board, system board, mobo - largest and most important circuit board |
|
|
CPU |
central processing unit, processor, microprocessor - does most the processing of data and instructions for the system |
|
|
heat sink |
metal fins that draw heat away from the CPU |
|
|
expansion cards |
fit in expansion slots on the mobo. a circuit board that provies more ports than those on the mobo. video card, wi-fi, etc |
|
|
DIMM |
dual inline memory module - memory slots that holds RAM |
|
|
RAM |
random access memory - temporary storage for data as it is being processed by the CPU |
|
|
video memory |
embedded RAM chip on video card |
|
|
HDD |
hard drive - permanent storage used to hold data and programs |
|
|
PSU |
power supply unit - box in a corner of the case taht receives and converts AC to DC |
|
|
dual-voltage selector switch |
switch on back of computer to switch PSU between 115v and 220v |
|
|
form factor |
standards that describe the size, shape, screw hole positions and major features of the interconnected components |
|
|
ATX |
advanced technology extended - most common form factor. |
|
|
PCI |
peripheral component interconnect - expansion slots |
|
|
ATX12v power supply |
power supply that is 4-pin, 12v |
|
|
PCIe |
PCI express - faster than PCI. fit in expansion slots added with ATX 2.2 |
|
|
PCIe power connector |
6- or 8-pin for PCIe cards needing more power |
|
|
MATX |
micro advanced technology extended - newer form factor. reduced cost due to reduced expansion slots, reduced power, allowing for smaller case size |
|
|
SATA |
serial advanced technology attachment - faster and newer standard for HDD |
|
|
PATA |
parallel advanced technology attachment - slower, older standard for HDD |
|
|
SATA power connector |
power cable for SATA drives |
|
|
Molex power connector |
4-pin power connector. used by PATA |
|
|
floppy drive |
also floppy disk drive (FDD). holds 3.5" disks containing up to 1.44MB of data. 34 pins and a twist in a cable. can have up to 2 drives |
|
|
4-pin Berg power connector |
used by floppy drives |
|
|
volts |
measure of electrical force symbol is "V" |
|
|
Ohm |
measure of resistance symbol is Omega |
|
|
Joule |
measure of work energy. 1 Joule is the work required to push current one amp through one ohm |
|
|
Watt |
measure of power. one watt = one joule/sec. watt = volts x amps symbol is "W" |
|
|
DC |
direct current - travels in one direction. used by most electronic devices |
|
|
rectifier |
device that converts AC to DC |
|
|
inverter |
device that converts DC to AC |
|
|
transformer |
device that changes ratio of voltage to current |
|
|
FRU |
field replaceable unit - replaceable, not repairable when servicing, i.e., monitor, PSU |
|
|
Class C fire extinguisher |
nonconductive chemical fire supression for electrical fire |
|
|
ESD |
electrostatic discharge, aka static electricity - electrical charge at rest. dangerous to computer components |
|
|
ground bracelet |
ESD strap, antistatic wrist strap - goes around wrist and clips to metal on computer case. discharges static electricity safely |
|
|
ground mat |
ESD mat - dissipates ESD. commonly used on bench or technician area |
|
|
antistatic bags |
static shield bag. Faraday cage taht protects against an electromagnetic field |
|
|
antistatic gloves |
ESD gloves - designed to prevent ESD discharge |
|
|
self-grounding |
dissipates any charge between you and what you touch. touch the case or the PSU before you touch a component in the case |
|
|
POST diagnostic card |
power on self test - mobo test card used to diagnose computer errors before the OS starts |
|
|
BIOS |
basic input/output system - stored on ROM chip. embedded programs used in computer startup |
|
|
firmware |
BIOS |
|
|
system BIOS |
manages essential devices; keyboard, mouse, HDD, display |
|
|
startup BIOS |
starts computer |
|
|
BIOS setup/ CMOS setup |
used to change the mobo configuration |
|
|
PSU tester |
used to measure the output of each connector on the PSU |
|
|
multimeter |
general purpose tool for measuring electricity. usually V, current, ohms and continuity |
|
|
loopback plug |
used to test a computer port to see if working, or check speed |
|
|
MSDS |
material safety data sheet - info on how to properly handle substances. info such as physical data, toxicity, health effects, first aid, storage, shipping, disposal, and spill procedures |
|
|
trip hazard |
stuff you trip on. cables and stuff |
