A+ material for certification
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| Number of pins in a serial port | 9-pin or 25-pin
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| Maximum transmission speed of a serial port | 115 kilobits per second (Kbps)
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| Serial ports transfer data at what rate | 1 bit at a time
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| The standard setting for a serial port | 9600 bps
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| What IRQ and I/O address is assigned to a serial port | I/O address 3F8, IRQ 4 (COM 1)
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| Number of pins in a parallel port | 25
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| Parallel port transfer data at what rate | 8 bits or 1 byte at a time
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| How many pins does the 1284b Centronic port have | 36
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| What I/O address and IRQ is assigned to a parallel port | I/O address of 378, IRQ 7 (LPT1)
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| How many pins does a Mini-DIN (PS/2) port have | 6
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| A computer that lacks a Mini-DIN(PS/2) port must have a | USB port
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| Most monitors and projectors connect to one of three video ports, name them | Video Graphics Array (VGA), Digital Visual Interface (DVI), or DisplayPort
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| Almost all CRT's and some LCD monitor connect into which port | VGA
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| Some LCD's and Projects connect into which port | DVI
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| How many pins does a VGA port have | 3 rows of 5 pins (15-pin)
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| How many pins does a DVI-I port have | 24
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| The DisplayPort has how many pins | 20
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| What can the 15-pin DB connector be used for? | Midi devices and Joysticks
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| The most common fiber connectors are | ST, SC, and LC
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| Very old NIC's might have a bayonet style connector called a ? used for 10Base2 or Thinnet networking | BNC connector
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| USB ports come in three varieties | A,B, and mini
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| USB Type A plugs into what device | The computer
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| Type B and mini USB ports plug into what device | The midi device
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| USB 1.1 and USB 2.0 transfers data at what speeds | (USB 1.1) 12 megabits per second and (USB 2.0) 480 Mbps
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| How many USB devices can be connected at the same time | 127
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| FireWire 1394a calls for transfer speeds of up to ? and 1394b is capable of speeds up to ? | 400 Mbps and 800 Mbps
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| FireWire 400 ports have how many pins standard? FireWire 800 devices have how many pins? | FireWire 400 ports have a 4-pin connector
FireWire 800 devices have a 9-pin connector
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| How many FireWire devices can you connect at one time | 63
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| How many pins does a SCSI female Ultra-320 port have What is the bit transfer rate | 68-pin
5 to 8 megabytes per second for early incarnations and 320 MBps for current versions
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| What do is used to clean electrical contacts and components such as the drive heads on removable media devices, but should never be used on motors or rubber drive belts | Denatured Alcohol
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| What solution is safe to use on most metal and plastic surfaces on PC's, but should never be used on older LCD screens | Glass Cleaner
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| Can be used to remove dirt, grime, and fingerprints from surfaces such as your monitor screen, LCD screen or scanner bed | Vinegar and Water Solution (1 part WHITE vinegar and 4 parts water)
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| Can be used to loosen dirt and dust from delicate PC components | Canned air
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| Can be used to clean dust and dirt from hard-to-reach areas and to wipe grime from electrical contacts | soft-bristled brushes and lint-free swabs
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| used to suck up dirt and dust loosened by a brush or canned air | NON-STATIC vacuum
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| Occurs when the supply of electricity drops dramatically but does not go out completely | Brownout
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| Occurs when power goes out completely | Blackout
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| Occurs when the voltage on your power line rises suddenly to above-normal levels | Power surge or power spikes
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| Protects the PC from brownouts or blackouts | Uninterrupted Power Supply (UPS)
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| Protects the PC from power surges or spikes | Surge Protector
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| Occurs when two signals get too close together and the noise of one is picked up by the other | Electromagnetic interference (EMI)
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| Never plug a laser printer into one of these because it will cause the device to function improperly. | Uninterrupted Power Supply (UPS)
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| Two ways to minimize EMI | Shortening the cables
Move data cables away from power cables
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| Only protection against lightening strikes | Unplug the PC and all peripherals
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| Environmental hazards to the PC | Heat, Moisture, and Dirt
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| Safest way to store PC's for future use is to store them in an | Anti-static bag
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| Electrostatic discharge (ESD) that affects your PC can be placed in these three categories | catastrophic damage, hidden damage, and gradual damage
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| Type of ESD that causes a computer component to fail immediately | Catastrophic ESD damage
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| Type of ESD damage that builds up over time and goes unnoticed until a component begins to behave erratically | Hidden ESD damage
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| Type of ESD damage that's not immediately apparent in full force; instead, the effects gradually get more and more noticeable over time. | ESD degradation
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| One of the most important steps you can take to prevent ESD before you hand a PC component | Ground yourself by touching a metal surface such as the exterior of your PC power supply
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| Never wear one of these while working near high voltage | Antistatic strap (1-megohm resistor)
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| Provides a work surface that dissipates ESD | Antistatic Mat (1-megohm resistor)
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| When wearing an antistatic wrist strap you normally would ground yourself by attaching the grounding wire to what | A metal device, a computer chassis or if the antistatic strap has one plug the prong into the ground wire of an electrical outlet
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| This can be used to prevent static build up in your clothing | Antistatic spray
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| Type of fire extinguisher that puts out a fire in a computer | Type C
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| Proper way to dispose of batteries | take back to the manufacture or to a recycling center. Disposal instructions are printed on them most of the time.
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| Proper way to dispose of CRT's | Send them to a commercial recycler or contact your city's hazardous waste management department
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| Proper way to dispose of Toner and Inkjet Cartridges | Refill them or send them to a commercial recycler service
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| All batteries, chemicals, and other hazardous items come with an ? that documents the safety warnings and procedures when handling the product | Material Safety Data Sheet (MSDS)
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| Every motherboard has one of these that determines the type of processor accepts and the type of internal/external devices the motherboard can support | Chipset
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| The oldest traditional configuration of the chipset contains two chips called | Northbridge (Memory Control Hub MCH) and Southbridge (I/O Control Hub ICH)
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| What's the function of the Northbridge | To connect the CPU to the fastest device-(RAM, High Speed Video Cards, etc). Needs sufficient cooling like fans and heatsinks
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| What's the function of the Southbridge | Handles some expansion device and hard drives. Slower speed devices then what's on the NorthBridge. Needs less cooling then the northbridge
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| Three of the most common motherboard form factors | ATX, BTX, and NLX
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| Of the three most common motherboard form factors which is the most popular | ATX and microATX
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| This form factor allows for special slots called audio modem risers(AMR) and communication and networking risers (CNR). These slots allowed motherboard manufacturers to avoid FCC certification | NLX
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| How can you update a motherboard's internal drivers | By flashing the bios. There is no recovery from flashing failure if done incorrectly
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| The AC plug on the back of a power supply is called | IEC 320 connector
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| Power supply unit(PSU) that can handle different voltages are called | switch-mode power supply
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| Powered connector used for floppy, parallel ATA(PATA), and SCSI drives | four-wire mini and Molex connectors
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| Connector for PCI Express video cards | 6 or 8-wire PCIe connector
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| Power supplies connect to the motherboard with up to four connectors, what are they? | 20 or 24-wire P1 connector (primary power circuit), 4-wire P4 connector (secondary power usually supplies power to the CPU), and a 6-wire auxiliary connector
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| What's the 5-volt orange wire on the P1 connector called | Power Good and is used for the initial boot sequence
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| A hum you hear when the power supply runs and can cause problems if not control | harmonics
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| A power supply that comes with extra circuitry that smooths out the way the power supply takes power from the electric company and can eliminate harmonics comes with | Power Factor Correction (PFC). Auto Switching PFC detects and adjusts the voltage that's coming from the wall accordingly
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| processes data and is the primary processing component of the CPU | Arithmetic logic unit (ALU)
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| Memory circuits located inside the CPU that hold data before and after processing | Registers
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| Used to check the voltage coming out of a power supply | multimeter
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| Every tech should have known-good supplies called | Field Replaceable Unit (FRU)
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| Handles complex calculations for applications that require it, such as graphics programs and 3-D games | Floating Point Unit (FPU)
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| The voltages supplied by most PC pwer supplies can safely vary by as much as | + or - 10%
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| CPUs have two sets of ultra-fast static RAM (SRAM) memory built in called | Cache
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| Memory that is fast, cheap, and must be refreshed | SDRAM (Dynamic RAM) - normal system RAM
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| Memory that really fast, very expensive, ad requires no refreshing | SRAM (Static Ram)-cache
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| Defines the maximum amount of RAM a CPU can theoretically address | The number of wires on the address bus also known as the address space
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| Gives you a good indication of the caliber of the CPU | The pipeline, clock speed, and clock multiplier
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| The discrete series of steps that the CPU follows to process commands | Pipeline
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| Tells you how many calculation cycles a CPU can execute per second | CPU clock speed or frequency
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| Two things determine clock speed | the maximum speed of the CPU and the maximum speed of the motherboard
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| Early CPU's took the beat set by the clock and simply double it, this is called a | Multiplier
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| CPU that comes in a square package | Pin Grid Array
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| Uses a small arm on the side of the zocket or a cage that fits over the socket to hold the CPU in place | Zero Insertion Force socket (ZIF)
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| Intel and AMD produced large, rectangular-shaped CPUs that fit into a slot, kind of like an expansion card called | Single Edge Cartridges (SECs)
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| Implements simultaneous multithreading, which is a way of executing multiple threads simultaneously on a single processor core | Hyperthreading
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| CPU that can lower their clock speeds when they reach a certain temperature has a feature called | throttling
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| AMD and Intel share common socket types..True or False | False
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| If the fan on a CPU is spinning but the PC doesn't boot you should? | Make certain that any jumpers governing speed or voltage are set correctly
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| How many pins do Single inline memory modules (SIMMs) usually have | 30 or 72
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| How many pins do dual inline memory modules (DIMM) usually have | 168, 184, or 240
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| How many pins does microDIMM usually have | 144, 172, or 214
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| How many pins does SO-DIMM usually have | 72,144, 200, and 204
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| How many pins does RIMM usually have | 184 and 232
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| Printer process | Clean, Charge, Write, Develop, Transfer, Fuse
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Created by:
Ramel34
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