Unit 1 Vocab

Question 1

Bit

Answer 1

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

Question 2

Byte

Answer 2

8 bits

Question 3

Overflow Error

Answer 3

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

Question 4

Round-off Error

Answer 4

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

Question 5

Analog Data

Answer 5

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.

Question 6

Digital Data

Answer 6

Data that changes discreetly through a finite set of possible values

Question 7

Sampling

Answer 7

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

Question 8

Lossless Compression

Answer 8

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

Question 9

Lossy Compression

Answer 9

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.

Question 10

Other Terms from AP Framework (subset)

Answer 10

• Binary: A way of representing information using only two options.
• 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
• Data Compression: A process for reducing the number of bits needed to represent a piece of information
• Decimal: a system for representing numbers using combinations of the digits 0 – 9
• 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.
• 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
• Open Source: programs that are made freely available and may be redistributed and modified