a data compression algorithm that allows the original data to be perfectly reconstructed from the compressed data

A type of data used for graphics or pictures

is data that describes other data. For example, a digital image my include metadata that describe the size of the image, number of colors, or resolution

the fundamental unit of a digital image, typically a tiny square or dot that contains a single point of color of a larger image

A base-16 number system that uses sixteen distinct symbols 0-9 and A-F to represent numbers from 0 to 15

uses varying intensities of Red, Green, and Blue light are added together in to reproduce a broad array of colors

a data compression method that uses inexact approximations, discarding some data to represent the content.

a simplified representation of something more complex that allows you to hide details to help you manage complexity, focus on relevant concepts, and reason about problems at a higher level

a computation in which rows from a data set are grouped together and used to compute a single value of more significant meaning or measurement. include: Average, Count, Sum, Max, Median, etc.

in most spreadsheet software it is the name of the tool used to create summary tables

a table that shows the results of aggregations performed on data from a larger data set, hence a "summary" of larger data. Spreadsheet software typically calls them "pivot tables"