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Binary
A number system that uses only two numbers, 0 and 1.
Bit
A "Binary Digit" is 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.
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 is represented in separate bits.
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.
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
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.
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
Boolean
A single value of either TRUE or FALSE (can be represented as a 1 or 0)
Metadata
Data that describes other data. For example, a digital image may include metadata that describe the size of the image, number of colors, or resolution.
Pixel
Short for "picture element" it is the fundamental unit of a digital image.
Abstraction
a simplified representation of something more complex.
Open source
refers to any software whose source code is made available free for any third party to review and modify
Transistor
The electronic semi-conductor device that makes it possible for us to have computers that fit in our hand. It controls the flow of electricity.
255
The largest number you can represent with 8 bits
RGB (red, green, blue)
color model used to display color on computer monitors, televisions, and similar devices
1011 in binary is ______ in decimal
11