AP CSP Code.org Unit 1 - Digital Information

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Last updated 10:59 PM on 3/8/26
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18 Terms

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bit

A contraction of "Binary Digit"; the single unit of information in a computer, typically represented as a 0 or 1

<p>A contraction of "Binary Digit"; the single unit of information in a computer, typically represented as a 0 or 1</p>
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Byte

8 bits

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Overflow Error

Error from attempting to represent a number that is too large.

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Round-off Error

Error from attempting to represent a number that is too precise. The value is rounded.

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Analog Data

Data with values that change continuously, or smoothly, over time. Some examples of analog data include music, colors of a painting, or position of a sprinter during a race.

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Digital Data

Data that changes discreetly through a finite set of possible values

<p>Data that changes discreetly through a finite set of possible values</p>
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Sampling

A process for creating a digital representation of analog data by measuring the analog data at regular intervals

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Lossless Compression

A process for reducing the number of bits needed to represent something without losing any information. This process is reversible.

<p>A process for reducing the number of bits needed to represent something without losing any information. This process is reversible.</p>
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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 not reversible.

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Binary

A way of representing information using only two options.

<p>A way of representing information using only two options.</p>
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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

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Data Compression

A process for reducing the number of bits needed to represent a piece of information

<p>A process for reducing the number of bits needed to represent a piece of information</p>
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Decimal

A system for representing numbers using combinations of the digits 0 - 9

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Intellectual Property

A work or invention 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.

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Open Access

Online research output, free of any and all restrictions on access and free of many restrictions on use, such as copyright or license restrictions

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Open Source

Programs that are made freely available and may be redistributed and modified

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Abstraction

Allows us to focus on the higher level of text without knowing/worrying about their details (binary)

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ASCII

A code for representing English characters as numbers, with each letter assigned a number from 0 to 127