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Chapter 1 Terms

PC Maintenence

TermDefinition
Tower Case Sits upright
Desktop Case Lies flat
VGA Video Graphics Array Port 15 pin female port that transmits analog video
DB-15 Port 15 pin female port that transmits analog video
DVI Digital Video Interface transmits digital or analog video
S-Video Port 4 or 7 pin round video port sometimes used to connect a television
HDMI Port transmits digital video and audio used to connect computers to televisions
DisplayPort Transmits digital video and audio
Thunderbolt transmits both video and data on the same port and cable
Network Port used by a network cable to connect to a wired network
Ethernet Port used by a network cable to connect to a wired network
RJ-45 used by a network cable to connect to a wired network
Audio Ports used to connect a microphone or headphones
S/PDIF Sound Port connects to an external home theater system
USB Port is a multipurpose I/O port used by many different devices
FireWire Port used for high speed multimedia devices such as digital camcorders
IEEE1394 Port used for high speed multimedia devices such as digital camcorders
External SATA port is used by an external hard drive using the eSata interface
PS/2 Port is a round 6 pn port used by a keyboard or mouse
Serial Port 9-pin male port used on older computers
Parallel Port 25-pin female port used by older printers
Modem Port is used to connect dial up phone lines to computers
RJ-11 is used to connect dial up phone lines to computers
Internal Components the main computer components
Motherboard the largest and most important circuit board in the computer
Main Board the largest and most important circuit board in the computer
System Board the largest and most important circuit board in the computer
Central Processing Unit does most of the processing of data and instructions for the entire system
Processor does most of the processing of data and instructions for the entire system
Microprocessor does most of the processing of data and instructions for the entire system
Heat Sink consists of metal fins that draw heat away from a compartment
Expansion Card is a circuit board that provides more ports than those provided by the motherboard
DIMM dual inline memory module slots to hold memory
RAM Random Access Memory temporary storage for data
Video Memory video cards also contain some embedded RAM chips for added memory
Hard Drive a permanent storage used to hold data and programs
Power Supply a box installed in a corner of the computer case that recieves and converts the house current so that components in the case can use it
Power Supply Unit a box installed in a corner of the computer case that recieves and converts the house current so that components in the case can use it
Hard Disk Drive a permanent storage used to hold data and programs
Dual Voltage Selector Switch on the computer case where you can switch the input voltage to tge power supply to 115 volts used in the USA or 220 V used in other countries
ATX Advanced Technology Extended is the most commonly used form factor today
20-pin P1 Connector used by the power supply and motherboard provided
PCI Peripheral Component Interconnect Expansion slots on the motherboard
4-pin motherboard auxiliary Connectror near the processor socket to provide an extra 12V of power
ATX12V Power Supply a power supple that provides this 4-pin 12 volt power
8-Pin Motherboard Auxiliary Connector provideds more amps for the processor
PCI Express the latest evolution of PCI which is not backwards compatible with older PCI cards and slots
24-pin P1 Connector also calledthe 20+4 power connector provided more power to when the PCI cards improved
MicroATX a major variation of ATX and addresses some technologies that have merged since the original development
Serial ATA the faster standard for hard drives
Parallel ATA the slower standard for hard drives
SATA Power Connector power cable that connects to the drive
Molex Power Connector PATA drives use this 4-pin power connector
Floppy Drive can hold a 3.5 inch disks containing up to 1.44 MB of data
Floppy Disk Drive can hold a 3.5 inch disks containing up to 1.44 MB of data
Berg Power Connector used by floppy floppy drives smaller than a molex
Volts a measure of electrical force
AMP a measure of electrical current
OHM measure of resistance to electricity
Joule a measure of work or energy
Surge Suppressor rated in joules
Altering Current goes back and forth
Direct Current travels in only one direction
Rectifier a device that converts AC to DC
Transformer a device that changes the ratio of voltage to current
Field Replaceable Unit it can be replacec
Class C Fire Extinguisers uses nonconductive chemicals to put out a fire caused by electricity
Electrostatic Discharge static electricity caused by sparks
Static Electricity static electricity caused by sparks
Ground Bracelet a strap that you wear around your wrist to keep you from getting shocked
ESD Strap a strap that you wear around your wrist to keep you from getting shocked
Anti-Static Wrist Strap a strap that you wear around your wrist to keep you from getting shocked
Ground Mat dissipates ESD
ESD Mat dissipates ESD
Antistatic Bags components are shipped in these bags
Anti-Static Gloves gloves you wear to keep you from getting shocked
ESD Gloves gloves you wear to keep you from getting shocked
Self-Grounding dissipates the charge
POST Diagnostic Card motherboard test card
POST Card motherboard test card
BIOS basic input output system
Firmware embedded programs tied into the hardware
System BIOS manages essential devices
Startup BIOS used to start up the computer
BIOS Setup used to change the motherboard configuration
CMOS Setup used to change the motherboard configuration
POST Power On Self Test
Power Supply Tester used to measure the output of each connector
Multimeter measure electricity
Loopback Plug used to test network connectivity
Material Safety Data Sheet how to properly handle chemicals
Trip Hazzard things people can trip over
Created by: 1019660571411816