Shared Flashcard Set

Details

CMI
Quiz #3 C.M.
108
Other
Undergraduate 1
06/19/2007

Additional Other Flashcards

 


 

Cards

Term
This type of signal produces a continuous and infinitely detailed waveform
Definition
Analog
Term
In actuality, this is not a wave, but a collection of discrete data used to describe an analog wave
Definition
Digital
Term
This indicates how many wave cycles are completed per second
Definition
Frequency
Term
Normal freq range of human hearing
Definition
20Hz to 20KHz
Term
Analog to digital converter when sampling a sound wave offers manipulation to what two parameters?
Definition
Sampling rate and quantization
Term
Term for how many samples are taken per second
Definition
Sample rate
Term
The _______ the sample rate, the more completely the wave shape can be represented digitally
Definition
higher
Term
This rule says that the wave must be sampled at a rate that is at least twice that of the highest frequency
Definition
Nyquist Theorem (r=2f)
Term
TRUE OR FALSE: The CD sampling rate is higher than that actually required to digitally reproduce the high pitched tones audible to humans
Definition
TRUE
Term
This is the mathematical relationship demonstrated by the Nyquist Theorem
Definition
Direct Proportion
Term
Lower-quality sampling rate that captures most of the sound frequencies audible to humans
Definition
Broadcast quality (32KHz)
Term
If the highest frequency contained in a particular analog recording is 24,000 Hz, what minimum sampling rate would be needed?
Definition
48,000 Hz

(r=2f)
(r= 2*24,000)
(r= 48,000 Hz)
Term
TRUE or FALSE : Higher sampling rates generate more data, thus requiring more computer storage space.
Definition
TRUE
Term
Recordings that capture frequencies two to five times the highest frequency audible to humans
Definition
Harmonics
Term
Quantization is also referred to as these three things
Definition
1)Bit depth

2)Precsision

3)Resolution
Term
Quantization is the process of assigning a _____ ___________ value to each sample
Definition
Wave amplitude
Term
TRUE or FALSE : The more bits used to sample a wave, the more detailed its digital amplitude ranges can be
Definition
TRUE
Term
Sampling error can be reduced by __________ both the sampling rate and the quantization
Definition
increasing
Term
This term refers to the similarity between the original wave and the digital signal generated by the DAC
Definition
Fidelity
Term
Span between the quietest and loudest sound in a recording
Definition
Dynamic range
Term
The volume or loudness of a sound wave
Definition
Amplitude
Term
Recording at a ________ resolution will capture a fuller dynamic range
Definition
higher
Term
TRUE or FALSE : If the sample rate and/or the quantization increases , the amount of memory needed to store a sound file decreases.
Definition
FALSE : It actually increases!
Term
Two ways of displaying graphical info on a computer screen are by installing a ______________ or by getting a computer with _________________
Definition
1)Graphics/Video Card

2)Onboard graphics
Term
Peripheral device displays the graphical information produced by a computer
Definition
Monitor or Display
Term
Pixel is a combination of the following two words
Definition
Picture element
Term
The computer display is made up of a grid of ________
Definition
pixels
Term
This determines the clarity/sharpness of the images displayed on the screen
Definition
resolution
Term
The video card instructs each pixel to display levels of this information
Definition
Color and luminance
Term
This company made the first video graphics card
Definition
IBM
Term
Monitors composed of only one value or shade
Definition
Monochrome
Term
TRUE or FALSE : The CGA and EGA graphics standards offered the production of digital color information
Definition
TRUE
Term
In 1987, IBM introduced a new graphics standard called the ______ to the computer industry. The main advantage offered by this standard was its ability to send an _________ signal.
Definition
1) VGA

2) Analog
Term
The maximum amount of colors that can be produced by the SVGA and UXGA graphics card standards
Definition
16.8 Million
Term
This group sets standards for video displays
Definition
Video Electronics Standards Association
Term
How many variations of each color does each pixel support?
Definition
256
Term
A ____________ video card is designed for enhancing video playback, gaming, and user interactions with GUI based applications
Definition
Consumer
Term
A ________ video card is designed for the purposes of professional animation, offering powerful tools of for rendering 3-d graphics
Definition
Professional
Term
TRUE or FALSE : The GPU helps the CPU and has special instruction sets for maniulating graphics data.
Definition
TRUE
Term
The GPU operates at a ________ clock frequency than the CPU
Definition
Lower
Term
3 main types of graphics processors
Definition
1) Graphics accelerator

2) Co-processor

3) Frame Buffer
Term
This GPU is most often found on consumer-grade graphics cards.
Definition
Graphics accelerator
Term
This type of GPU is most often found on professional-grade graphics cards.
Definition
Graphics co-processor
Term
A variety of this type of RAM is most commonly included in todays video cards
Definition
DDR SDRAM
Term
A _______ card will allocate 3 to 4 Bytes-worth of info per pixel
Definition
True-color
Term
This color system is used by some graphics cards to assign one byte of info to each pixel. These bytes are then referenced to look up the associated color value in a pre designed chart.
Definition
CLUT (Color Look Up Table)
Term
This ROM chip is activated shortly after the computer has been powered on and ensures that the video card is recognized by the system.
Definition
Graphics BIOS
Term
This DAC on a video card is referred to as this because it directly converts information from memory into an analog signal.
Definition
RAMDAC
Term
This DB-15, VGA connector for CRT monitors sends an _______ color output to the monitor
Definition
Analog
Term
This display connector keeps the output signal digital
Definition
DVI
Term
This interface was common between 1996 and 2004 and featured a dedicated I/O connector.
Definition
AGP
Term
TRUE or FALSE: The PCI Express 16x I/O Bus system is the current video card standard
Definition
True
Term
These two technologies permit the power of dual and quad video cards to be harnessed simultaneously. They use PCI-e 16x connection.
Definition
SLI and Crossfire
Term
These small software programs synchronize video cards. They can be updated as necessary
Definition
Video Drivers
Term
These routines and protocols establish a foundation for building software.
Definition
API's (Application program interfaces)
Term
This type of CRT monitor has a flat screen that reduces glare, and uses thin metal wiresfor filtering stray electronics, generating sharp images.
Definition
Aperature grill
Term
This type of CRT monitor uses a mesh grid for filtering stray electrons.
Definition
Shadow mask
Term
These two distances are measured between the like colored phosphors on a monitor.
Definition
Dot pitch and stripe pitch
Term
Number of times a monitor's screen is redrawn per second
Definition
Refresh rate
Term
Screen refresh rates should be set to a minimum of _____ or above
Definition
70 Hz
Term
This measurement provides the total area of a computer screen in pixels.
Definition
resolution
Term
________ resolution monitors display more information on screen, scaled to a smaller size.
Definition
higher
Term
Liquid crystal display monitors use a _______ of cells to display data
Definition
Matrix
Term
Optimal resolution for an LCD monitor
Definition
Native resolution
Term
The _______ the viewing angle, the better quality of the monitor.
Definition
larger
Term
This term refers to difference between the brightest white and darkest black on an LCD.
Definition
Contrast Ratio
Term
_____ monitors offer greater overall brightness levels.
Definition
LCD
Term
TRUE or FALSE: An easy way to create a dual monitor system is to purchase a video card that supports a dual monitor configuration.
Definition
TRUE
Term
This building block for animated 3-d graphics consists of at least 3 line segments connected by vertices.
Definition
Polygon
Term
Mathematical term for the point that connects two edges of a polygon
Definition
Vertex
Term
Process of adding shading, lighting, and texture to wireframe 3-d models
Definition
rendering
Term
in these shapes, all sides measure the same length, and all angles open to the same degree
Definition
Regular polygons
Term
The faces of these 5 unique solids are made up of regular polygons
Definition
platonic solids
Term
These volume models provide the basic set of objects which animators can build more complex forms.
Definition
Primitives
Term
What gate goes with a UNION?
Definition
OR gate
Term
What gate goes with an intersection?
Definition
AND gate
Term
What gate goes with a complement?
Definition
NOT gate
Term
This type of quantity measures amount, degree, or magnitude (ie distance)
Definition
Scalar
Term
A vector quantity represents a displacement and shows both ____________ and ____________
Definition
magnitude and direction
Term
This process can be used to measure scalar quantities.
Definition
Absolute value
Term
This term refers to making spatial adjustments or changes in the geometric form of an object.
Definition
Geometric transformations
Term
The dimension of a matrix is given in terms of ____ by ____
Definition
Rows and Columns
Term
This symbolic system is used to represent graphics data because its structure can easily be translated into a digital signal
Definition
Matrix
Term
TRUE or FALSE: It is possible to add matrix 3x4 with 4x3
Definition
FALSE
Term
the subtraction of a negative number is the same as ________
Definition
addition
Term
____________ stores graphics information in memory in the form of a matrix
Definition
Sequential representation
Term
_____________ stores graphics information in memory in the form of a list
Definition
Linked representation
Term
This term refers to ease of adding or updating the components inside a computer case.
Definition
Expandability
Term
These shelves inside a computer case are used to hold internal mass storage devices in place
Definition
Bays
Term
Hard drives are typically situated in _____ inch bays, and CD drives are seated in ____ inch bays
Definition
a. 3.5"

b. 5.25"
Term
Computer cases are designed to protect components from outside objects, vibrations, EMI, and _____
Definition
ESD (Electrostatic Discharge)
Term
Besides ESD, this is one main causes of computer component malfunction
Definition
Heat
Term
Dust is an _________ that traps heat within the computer
Definition
insulator
Term
Long term exposure to vibrations may result in this
Definition
Chip Creep
Term
A well built case will protect against ___________ interference
Definition
electromagnetic
Term
The _______ the computer operates, the longer it will last.
Definition
cooler
Term
If a computer seems to run properly, but shuts down for no reason, what should be monitored?
Definition
System temperature, fans, and cooling units
Term
Air should be brought in through the ____ and sent out through the _____
Definition
1) Front
2)Back
Term
These components on the front of the case must be connected to the right spots on the motherboard
Definition
Switches and LED's
Term
The switch converts the voltage received from a wall socket to the wattage necessary for use by the computer. In the U.S., this switch is set to ______
Definition
115V
Term
These cases are designed to be placed beneath the monitor.
Definition
Desktop
Term
Currently the most popular type of case. there are 3 types.
Definition
Tower
Term
Largest type of tower case
Definition
Full Tower
Term
TRUE or FALSE: It is important to choose a case that matches the form factor of the motherboard
Definition
TRUE
Term
This power supply connector is used to connect fans, HD, CD, ad DVD drives
Definition
molex
Term
This power supply connector is used to connect floppy drives
Definition
berg
Term
Device that eliminates ripples in electric current by channeling the extraneous voltage into ground wires.
Definition
Surge Protector
Term
Back-up power supply, provides sustained voltage when loss of power occurs
Definition
UPS (Uninterruptable Power Supply)
Supporting users have an ad free experience!