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Computer Repair Ch 5
Disassembly & Power
| Question | Answer |
|---|---|
| Certified W-USB | A Wireless USB |
| ATA | Advanced Technology Attachment |
| Charging USB port | Port providing power to charge & run unpowered attached device, ie. flash drive. |
| Coaxial | Type of cabling used in video connections - copper core, insulated & shielded from EMO |
| PCI | Peripheral Component Interconnect. (older 32 & 64 bit, 66 MHz local bus standard found in computers) |
| UEFI | Unified Extensible Firmware Interface (replaced traditional BIOS, has boot manager instead of controlling boot processor - allows for graphic interface, use of mouse, and antivirus, before O.S. loads) |
| IDE | Integrated Drive Electronics (interface that evolved into the ATA standard that supports internal storage devices) |
| PCI | Peripheral Component Interconnect |
| PCIe | Peripheral Component Interconnect Express |
| Form Factor | The shape and size (height, width, depth) of M/B, adapters, memory chips, power supplies, etc. (form factor must fit case) |
| ESD | Electrostatic Discharge (cumulative effects of ESD weaken or destroy electronic components) |
| EMI | Electromagnetic Interference (electronic noise created by electrical devices) |
| Dual-voltage | A type of power supply that can be used with 120 or 240-volt electrical systems. |
| Dual-rail power supply | Power supply that has two +12-volt lines available. |
| Current | Measure, in amps, of electrons running through a circuit. |
| CPU Throttling | Adjusting speed of CPU, also called 'dynamic frequency scaling'. This slows down computer when possible to use less energy & conserve battery. |
| Continuity | An electrocal resistance measurement to see if a wire is good or broken. |
| CMOS | Complimentary Metal Oxide Semiconductor - special type of memory on a M/B in which setup configuration is saved. |
| Capacitor | electrical component that can hold a charge. |
| Blackout | Total loss of AC power |
| Brownout | Loss of AC power due to overloaded circuits |
| Auto-Switching | Type of power supply that monitors incoming voltage from wall outlet & switches itself accordingly |
| ATX | Advanced Technology Extended - a form factor for M/B, cases & Power Supplies. |
| ATX power supply form factor | Shape and size of a power supply that is designed to fit & function with an ATX M/B and ATX case. |
| ATA standard | Advanced Technology Attachment - The original IDE interface that supported two drives (3 types: SATA & PATA) |
| Anti-static wrist strap | Strap connecting the technician to computer that equalizes the voltage potential between the two to prevent electrostatic discharge (ESD) |
| Amps | Ampers, measurement of electrical current. |
| ACPI | Advanced Configuration & Power Interface. Technology that allows M/B & O.S. to control power needs and operation modes of various devices. |
| AC circuit tester | Device that checks a wall outlets wiring. |
| 24-pin main power | Main ATX M/B power connector |
| 20-pin main power | Older M/B power connector. |
| 15-pin SATA power | Internal SATA power connector |
| 8-pin PCIe | Video card power connector sometimes labeled as a 6 + 2, meaning it can be used with a 6-pin or 8-pin connector. |
| 8-pin 12v | CPU power connector used with ATX 12V v1 power supply |
| 6-pin PCIe | Power connector for PCIe video adapter |
| Ohms | Measure of resistance, amount of opposition to current in a electrical circuit. |
| MSDS | Material Safety Data Sheet or Safety Data Sheet - contains information about cleaning solutions. |
| MOV | Metal Oxide Varistor - electronic component in surge protectors protects computer or device plugged into the strip preventing extra voltage from passing to outlets. |
| 4-pin 12V | Power connector for CPU that is sometimes labeled AUX |
| 3-pin | Used to monitor fan speed. |