Intro to computer test 1

A group of eight bits.
Byte
3-D graphics are based on vectors stored as a set of instructions describing the coordinates for lines and shapes in a three-dimensional space. What do these vectors form?
A wireframe
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Is a software that compress a video stream when a video is stored, and decompressed the file when the video is played
Codec
ASCII requires _____bits for each character
Seven
Compressed files usually have _____at the end of the file name.
.zip
Digital audio is stored in a variety of file formats, including_____.
All of the above
Digital data can be _____that have been converted into discrete digits such as 0s and 1s.
All of the above
Digital video is a core technology for which of the following?
All of above
In the context of the bitmap graphics editing, what technique employs algorithms that pull pixels from one area of an image and them to another man
Cloning
Most graphics software uses a process called pixel______to create new pixels by averaging the colors of nearly pixels.
interpolation
Most music of portable media players is stored in ___ audio file formats
Compressed
Sampling____ refers to the number of times per second that a sound is measured during the recording process.
Rate
The number of colors available in a graphic is referred to as a color _____.
Depth
The number of frames that are displayed per second is measured in ____.
Fps
The process of converting info, such as text, numbers, photos, or music, into digital data that can be manipulated by electronic devices is called_______.
Digitization
The______ number system allows digital devices to represent virtually any number simply by using 0s and 1s.
Binary
Today’s color display devices represent color using the _____ color model.
RGB
Today’s widescreen devices, such as laptops and smartphones, are designed for the 16:9____.
Aspect Ratio
Transmission speeds are expressed in____, whereas storage space is expressed in_____.
Bits,bytes
Unicode uses_____bits and provides codes for 65,000 characters.
16
What is another term for vector graphics software?
Drawing Software
What’s the term used to describe altering the pixel colors where the edges of the object and the background meet, so that the object appears to merge with the background?
Alpha blending
Which of the following file extensions is NOT a vector graphic?
.tif
Which of the following is NOT a factor in the quality of digital video?
Memory technology in your camera
Which of the following is NOT a format that is used for digital audio?
DOC
Which of the following is NOT a type of bitmap format?
ZIP
Which of the following is NOT a type digital video container file?
PNG (.png)
Which of the following is the technique for adding light and shadows to a 3D image?
ray tracing
Which of the following options are well suited for using vector graphics?
All of the above
Which of the following tools would be found in 3D graphics software?
All of the above
__data consists of numbers that can be used in arithmetic operations.
Numeric
Is the number of bits that are processed during a specific unit of time, usually during one second
Bite rate
______enable people to control software w spoken commands, as well as dictate text into a word processing document.
Speech recognition
Is a music, speech,and other sounds represented in binary format for use in digital devices
Digital audio
3D graphics can be animated
True
8bit color depth is also called true color
False
A bitmap graphic is composed of a grid of tiny rectangular cells
True
A file name extension indicates the file fortmat
True
A vector graphic consist of a instructions for creating a picture
True
True
After a vector graphic is converted to a bitmap
True
All bitmap graphics are photos
False
All of the data stored and transmitted by digital devices is encoded as bits
True
ASCII text files contain formatting
False
Bitmap graphics are resolution dependent because each element is a discrete pixel
True
Both scanners and digital cameras produce vector graphics
False
Data refers to the symbols that represent people events things and ideas
True
Digital photography are stored as bitmap files
True
Digital video uses bits to store color and brightness dare for each video frame
True
Digital videos look sharpest when they are displayed at a resolution that is larger than the frame Size
False
In the digital video, a lower resolution reduces the but rate
True
In digital video, as long as the proportion of horizontal and vertical pixels remains the same the aspect ratio is consistent
True
True
JPED files are compressed using lossy compression
True
Lossy compression provides a way to compress data and reconstitute it into its original state
False
Lossy compression techniques discard some data from an image to shrink its file size
True
Lossy compression throws away some of the original data during the compression process
True
MIDI files are less compact than digital audio files
False
On of the main disadvantage of MIDI is that it cannot produce vocals
True
Plain, unformatted text is sometimes called ASCII text
True
Regardless of sampling rate, digital audio file size can be reduced using audio compression techniques
True
Text-to-speech software analyzes the words in a section of text, finds corresponding phonemes and combines them into sentences for output
True
The binary number system has only 2 digital :1 and 2
False
The technical term for ripping music is digital audio extraction
True
TIFF, PNG, GIF graphics formats offer lossy compression
False
To conserve space, application that require high quality sound use low sampling rates
True
Transcoding digital videos does not cause a loss of quality
False
Vector graphics usually require more storage space than bitmaps
False
Video resolution can be expressed as Width x height
True
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