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unit 1: digital content
Terms in this set (19)
The process of converting information, such as text, numbers, photos, or music, into digital data that can be manipulated by electronic devices is called
data consists of numbers that can be used in arithmetic operations.
Transmission speeds are expressed in _______, whereas storage space is expressed in _______.
Lossy compression provides a way to compress data and reconstitute it into its original state.
To digitally record sound,
of a sound wave are collected at periodic intervals and stored as numeric data in an audio file.
specifies a standard way to store music data for synthesizers and computers.
enables people to control software with spoken commands, as well as dictate text into a word processing document.
The number of colors available in a graphic is referred to as color
Bitmap graphics are resolution dependent because each element is a discrete pixel.
TIFF, PNG, and GIF graphics formats offer lossy compression.
Image editors provide an image
that can be used to adjust the brightness values for various ranges of dark, mid-range, or light pixels.
Instead of storing the color value for each pixel, a vector graphics file contains instructions that a computer uses to create the shape, size, position, and color for each object in an image.
Both scanners and digital cameras produce vector graphics.
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?
technique for adding light and shadows to a 3-D image
Analog footage can be digitized using video
is the number of bits that are processed during a specific unit of time, usually during one second
compression can be applied to each frame of a video.
Video files are stored in
formats that hold the compressed video stream and an audio stream.
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