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Chapter 1 Terms
PC Maintenence
| Term | Definition |
|---|---|
| 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 |