Ap Csp Unit 1 Review

Decimal number

a base 10 number with ten possible different digits

Binary number

a base 2 number with two possible different digits

Bit

A contraction of "Binary Digit"; the single

unit of information in a computer, typically

represented as a 0 or 1

Byte

8 bits

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.

ASCII

a character encoding system that represents text in computers and electronic devices using numeric codes (0–127) for letters, digits, symbols, and control characters.

Sampling

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

analog data at regular intervals called samples.

Pixelation

visual effect where individual ___ become visible, usually because an image is displayed at too low a resolution or is enlarged beyond its quality limit.

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.

Digital Data

Data that changes discretely through a finite set of possible values

Layers of abstraction in color images

Digital Image layer - Sampling layer - Pixel layer - Binary layer

Lossless Compression

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

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

Intellectual property

the legal protection of creations of the mind, such as inventions, designs, symbols, artistic works, and brand names.

Creative Commons

a type of license that allows creators to share their work with the public while still controlling how it can be used, such as whether others can modify it or use it commercially.

Digitalization

the process of converting information, processes, or systems into a digital format to improve efficiency, accessibility, and use with digital technologies.