Unit 1: digital information

• Binary: A way of representing information using only two options
• Bit: a contraction of "Binary Digit"; the single unit of information in a computer, typically represented as a 0 or a 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
• Abstraction: a simplified representation of something more complex. This lets us hide the details and instead focus on problems at a higher level
• sampling: a process for creating a digital representation of analog data by measuring the analog data at regular intervals called samples
• Analog data: data with values that change continuously, or smoothly, over time. Some examples of analog data include music, the colors of a painting, or the position of a sprinter during a race.
• Digital data: data that changes discreetly through a finite set of possible values
• 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.
• 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 they have created.
• Intellectual Property: A work of invention that is the result of creativity, such as a piece of writing or design, to which one has rights and for which one may apply for a patent, copyright, trademark, etc.
• Abstraction: A simplified representation of something more complex. This lets us hide the details and instead focus on problems at a higher level