Unit 1-Digital information Flashcards
Round-off error
Error from attempting to represent a number that is too precise, the value is rounded
Bit
The single unit of information in a computer, typically in binary
Overflow error
error from attempting to represent a number that is too large
Round-off error
Error from attempting to represent a number that is too precise, the value is rounded
Analog data
Data with values that change continuously, or smoothly, over time.
Digital data
Data that changes discreetly through a finite set of possible values
Sampling
A process for creating a digital representation of analog data by measuring the analog data at regular intervals called samples.
Lossless compression
A process for reducing the number of bits needed to represent something without losing any information. THis process is reversible
-used when quality and reversibility is most important, not when time is most important
Lossy compression
A process for reducing the number of bits needed to represent something in which some information is lost or thrown away. THis process is irreversible
Binary
A way of representing information using only two options
Creative commons
A collection of public copyright licenses that enable the free distribution of an otherwise copyrighted work, used when an author wants to give people the right to share, use, and build upon a work that they have created.
Data compression
A process for reducing the number of bits needed to represent a piece of information
Decimal
A system for representing numbers using combinations of the digits 0-9
Open access
Online research output is free of any and all restrictions on access and free of many restrictions on use, such as copyright or license restrictions.
Intellectual property
A work or invention is the result that is the result of creativity, such as a piece of writing or a design, to which one has rights and for which one may apply for a patent, copyright, trademark, etc.
