Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
A+ Certification
A+ material for certification
| Question | Answer |
|---|---|
| Number of pins in a serial port | 9-pin or 25-pin |
| Maximum transmission speed of a serial port | 115 kilobits per second (Kbps) |
| Serial ports transfer data at what rate | 1 bit at a time |
| The standard setting for a serial port | 9600 bps |
| What IRQ and I/O address is assigned to a serial port | I/O address 3F8, IRQ 4 (COM 1) |
| Number of pins in a parallel port | 25 |
| Parallel port transfer data at what rate | 8 bits or 1 byte at a time |
| How many pins does the 1284b Centronic port have | 36 |
| What I/O address and IRQ is assigned to a parallel port | I/O address of 378, IRQ 7 (LPT1) |
| How many pins does a Mini-DIN (PS/2) port have | 6 |
| A computer that lacks a Mini-DIN(PS/2) port must have a | USB port |
| Most monitors and projectors connect to one of three video ports, name them | Video Graphics Array (VGA), Digital Visual Interface (DVI), or DisplayPort |
| Almost all CRT's and some LCD monitor connect into which port | VGA |
| Some LCD's and Projects connect into which port | DVI |
| How many pins does a VGA port have | 3 rows of 5 pins (15-pin) |
| How many pins does a DVI-I port have | 24 |
| The DisplayPort has how many pins | 20 |
| What can the 15-pin DB connector be used for? | Midi devices and Joysticks |
| The most common fiber connectors are | ST, SC, and LC |
| Very old NIC's might have a bayonet style connector called a ? used for 10Base2 or Thinnet networking | BNC connector |
| USB ports come in three varieties | A,B, and mini |
| USB Type A plugs into what device | The computer |
| Type B and mini USB ports plug into what device | The midi device |
| 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 |
| How many USB devices can be connected at the same time | 127 |
| FireWire 1394a calls for transfer speeds of up to ? and 1394b is capable of speeds up to ? | 400 Mbps and 800 Mbps |
| 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 |
| How many FireWire devices can you connect at one time | 63 |
| 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 |
| 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 |
| 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 |
| 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) |
| Can be used to loosen dirt and dust from delicate PC components | Canned air |
| 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 |
| used to suck up dirt and dust loosened by a brush or canned air | NON-STATIC vacuum |
| Occurs when the supply of electricity drops dramatically but does not go out completely | Brownout |
| Occurs when power goes out completely | Blackout |
| Occurs when the voltage on your power line rises suddenly to above-normal levels | Power surge or power spikes |
| Protects the PC from brownouts or blackouts | Uninterrupted Power Supply (UPS) |
| Protects the PC from power surges or spikes | Surge Protector |
| Occurs when two signals get too close together and the noise of one is picked up by the other | Electromagnetic interference (EMI) |
| Never plug a laser printer into one of these because it will cause the device to function improperly. | Uninterrupted Power Supply (UPS) |
| Two ways to minimize EMI | Shortening the cables Move data cables away from power cables |
| Only protection against lightening strikes | Unplug the PC and all peripherals |
| Environmental hazards to the PC | Heat, Moisture, and Dirt |
| Safest way to store PC's for future use is to store them in an | Anti-static bag |
| Electrostatic discharge (ESD) that affects your PC can be placed in these three categories | catastrophic damage, hidden damage, and gradual damage |
| Type of ESD that causes a computer component to fail immediately | Catastrophic ESD damage |
| Type of ESD damage that builds up over time and goes unnoticed until a component begins to behave erratically | Hidden ESD damage |
| 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 |
| 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 |
| Never wear one of these while working near high voltage | Antistatic strap (1-megohm resistor) |
| Provides a work surface that dissipates ESD | Antistatic Mat (1-megohm resistor) |
| 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 |
| This can be used to prevent static build up in your clothing | Antistatic spray |
| Type of fire extinguisher that puts out a fire in a computer | Type C |
| 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. |
| Proper way to dispose of CRT's | Send them to a commercial recycler or contact your city's hazardous waste management department |
| Proper way to dispose of Toner and Inkjet Cartridges | Refill them or send them to a commercial recycler service |
| 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) |
| 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 |
| The oldest traditional configuration of the chipset contains two chips called | Northbridge (Memory Control Hub MCH) and Southbridge (I/O Control Hub ICH) |
| 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 |
| 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 |
| Three of the most common motherboard form factors | ATX, BTX, and NLX |
| Of the three most common motherboard form factors which is the most popular | ATX and microATX |
| 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 |
| How can you update a motherboard's internal drivers | By flashing the bios. There is no recovery from flashing failure if done incorrectly |
| The AC plug on the back of a power supply is called | IEC 320 connector |
| Power supply unit(PSU) that can handle different voltages are called | switch-mode power supply |
| Powered connector used for floppy, parallel ATA(PATA), and SCSI drives | four-wire mini and Molex connectors |
| Connector for PCI Express video cards | 6 or 8-wire PCIe connector |
| 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 |
| What's the 5-volt orange wire on the P1 connector called | Power Good and is used for the initial boot sequence |
| A hum you hear when the power supply runs and can cause problems if not control | harmonics |
| 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 |
| processes data and is the primary processing component of the CPU | Arithmetic logic unit (ALU) |
| Memory circuits located inside the CPU that hold data before and after processing | Registers |
| Used to check the voltage coming out of a power supply | multimeter |
| Every tech should have known-good supplies called | Field Replaceable Unit (FRU) |
| Handles complex calculations for applications that require it, such as graphics programs and 3-D games | Floating Point Unit (FPU) |
| The voltages supplied by most PC pwer supplies can safely vary by as much as | + or - 10% |
| CPUs have two sets of ultra-fast static RAM (SRAM) memory built in called | Cache |
| Memory that is fast, cheap, and must be refreshed | SDRAM (Dynamic RAM) - normal system RAM |
| Memory that really fast, very expensive, ad requires no refreshing | SRAM (Static Ram)-cache |
| 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 |
| Gives you a good indication of the caliber of the CPU | The pipeline, clock speed, and clock multiplier |
| The discrete series of steps that the CPU follows to process commands | Pipeline |
| Tells you how many calculation cycles a CPU can execute per second | CPU clock speed or frequency |
| Two things determine clock speed | the maximum speed of the CPU and the maximum speed of the motherboard |
| Early CPU's took the beat set by the clock and simply double it, this is called a | Multiplier |
| CPU that comes in a square package | Pin Grid Array |
| 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) |
| Intel and AMD produced large, rectangular-shaped CPUs that fit into a slot, kind of like an expansion card called | Single Edge Cartridges (SECs) |
| Implements simultaneous multithreading, which is a way of executing multiple threads simultaneously on a single processor core | Hyperthreading |
| CPU that can lower their clock speeds when they reach a certain temperature has a feature called | throttling |
| AMD and Intel share common socket types..True or False | False |
| 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 |
| How many pins do Single inline memory modules (SIMMs) usually have | 30 or 72 |
| How many pins do dual inline memory modules (DIMM) usually have | 168, 184, or 240 |
| How many pins does microDIMM usually have | 144, 172, or 214 |
| How many pins does SO-DIMM usually have | 72,144, 200, and 204 |
| How many pins does RIMM usually have | 184 and 232 |
| Printer process | Clean, Charge, Write, Develop, Transfer, Fuse |
Created by:
Ramel34
Popular Computers sets