Com Sci Digital Information

Bit

a contraction of a “Binary Unit”, the single unit of information in a computer, typically written as a 0 or a 1

Byte

8 bits

Binary

A way of representing information using only 2 options

Binary number system

A system for representing numbers with the combinations being 0 and 1

Overflow error

An incorrect value from attempting to represent a number that is too large

Round-off error

An incorrect value from attempting to represent a number that is too precise

Digital Data

Data that changes discreetly through a finite set of possible values

Analog Data

Data with values that change continuously, or smoothly, over time, for example, music and colors of a painting

Sampling

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

Pixel

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

Resolution

The dimensions by which how many pixels can fit on the screen

RGB

The RGB color model that represents colors in different intensities, (R)ed, (G)reen, (B)lue light added together to create a broad array of colors.

Data compression

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

Lossless Information

A process for reducing the number of bits needed to represent something without losing information

Lossy Compression

A process for reducing the number of bits needed to represent something in which some information is lost

Intellectual Policy

A work or invention that is the result of creativity, such as a piece of writing or a design, to which one has rights

Creative commons

A collection of public copyright licensees that enable the distribution of an otherwise copyrighted work

Open Access

Content free of any and all restrictions on access and free of many restrictions on use

Open Source

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