Shared Flashcard Set

Details

Midterm
A+ Basic Computer Knowledge PART 1
33
Computer Science
Undergraduate 2
11/12/2013

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Cards

Term
Which is faster, a Hi-Speed USB port or a SuperSpeed USB port?
Definition
SuperSpeed USB is faster than Hi-Speed USB.
Term
What type of output does an S/PDIF port provide?
Definition
Connect to external home theater audio system that provides the best signal quality and digital audio output.
Term
List five types of video ports.
Definition
VGA, HDMI, DVI, DisplayPort and Thunderbolt
Term
What is the purpose of an expansion slot on a motherboard?
Definition
to increase functionality of computer.
Term
What should be the setting for a dual-voltage selector switch on a power supply when
using the computer in the United States?
Definition
The dual-voltage selector switch should be on 115V if being used in the United States.
Term
What unit of measure is used to describe the amount of work a surge suppressor can do
before it stops protecting the circuit from an electrical surge?
Definition
Joules
Term
Hot wires in home wiring are normally colored ____, and ground wires in computers are
normally colored _____.
Definition
black, black.
Term
What is the difference between a transformer and a rectifier? Which are found in a PC
power supply?
Definition
a Rectifier is a device that converts AC to DC and a transformer is a device that changes the ratio of voltage to current and is found inside the PC power supply.
Term
What device can you use to make sure a computer is protected against power surges?
Definition
surge protector or suppressor
Term
A power supply receives 120 volts of ___ power from a wall outlet and converts it to 3.3,
5, and 12 volts of ____ power.
Definition
Term
Why is a power supply dangerous even after the power is disconnected?
Definition
capacitors inside still retain a lot of charge and could shock you
Term
Which two tools can a PC support technician use when taking apart a computer to best
protect computer components against ESD?
Definition
anti-static grounding bracelet and static shielding bag.
Term
What is the purpose of a POST diagnostic card?
Definition
to help discover, report computer errors and conflicts at POST and tests are performed by startup BIOS.
Term
What three purposes are accomplished by the motherboard BIOS?
Definition
1 manages simple devices
2 starts the computer
3 changes motherboard settings
Term
What is the best way to determine if a cable inside a computer is a data and instruction
cable or a power cable?
Definition
follow it back to its source
Term
What technology standard provides for up to four drives installed in a system?
Definition
PATA / IDE
Term
How many pins does the P1 connector have that uses the ATX Version 2.2 standard?
Definition
P1 connector has 24 pins or 20+4 pins
Term
What device might require extra power so that it uses the 12V 6-pin power connector?
In what two locations might you fi nd the connector?
Definition
a high-end video card using PCI Express, Version 1 standard uses the 12V 6-pin power connector. Two location of this connector on the PCI card itself and the one on the motherboard.
Term
What is the purpose of the 4-pin auxiliary connector on a motherboard?
Definition
to provide an additional 12V of power for evolving CPUs
Term
What is the purpose of the 4-pin Molex connector?
Definition
connects a PATA / IDE device to the motherboard.
Term
When taking a computer apart, why is it important to not stack boards on top of each other?
Definition
because of electrical interference they might cause to one another.
Term
Why is it important to remove loose jewelry before working inside a computer case?
Definition
because it might get caught in cables and or in components.
Term
When assembling systems, which do you install first, the drives or the motherboard?
Definition
you install the drives before the mother but it may depend on the computer you are working on.
Term
What is the purpose of raised screw holes or standoffs installed between the motherboard and case?
Definition
to keep the board from touching the case so that it prevents electrical shorts.
Term
When installing the front panel wires to the motherboard front panel header, how do you know which pins to use for each wire if the pins on the header are not labeled?
Definition
youll know by taking a picture of them beforehand.
Term
What are the two major components of a processor cooler assembly?
Definition
Heat sink and Fan
Term
How many pins does the CPU fan header on a motherboard have?
Definition
4 pins
Term
If the power connector from the CPU fan has only 3 pins, it can still connect to the 4-pin header, but what functionality is lost?
Definition
Lost 'pulse width modulation' function. this controls the fan speed so it wont make as much noise.
Term
How do you determine the wattage capacity needed by a power supply?
Definition
reading the power supply ratings that are documented on the side of the power supply unit.
Term
which one component in a high-end gaming computer is likely to draw the most power?
Definition
video card
Term
what are the 3 most popular form factors used for motherboards?
Definition
AXT, microATX and Mini-ATX
Term
Which type of INtel chpsets was the first to support the graphics controller to be part of the processor?
Definition
the sandy bridge chipset
Term
how many pins does the intel socket b have? what is another name for this socket?
Definition
it has 1366 pins and it is also referred to as the LGA1366 socket
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