Unit 1 - Digital Information

Question 1

Bit

Answer 1

A contraction of binary digit. A single unit of information in a computer (0 or 1).

Question 2

Byte

Answer 2

8 bits

Question 3

Binary

Answer 3

A way of representing information using only two options.

Question 4

Overflow Error

Answer 4

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

Question 5

Round-off Error

Answer 5

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

Question 6

Analog

Answer 6

Term used to mean something that has continuous representation.

Question 7

Analog Data

Answer 7

Data values that change continuously over time. Some examples include music, colors of a painting.

Question 8

Analog Image

Answer 8

Made from traditional tools (pen, pencil, etc) and on traditional media (paper, canvas, etc)

Question 9

Digital Data

Answer 9

Data that changes discreetly through a finite set of possible values.

Question 10

Sampling

Answer 10

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

Question 11

Lossless Compression

Answer 11

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

Question 12

Lossy Compression

Answer 12

A process of reducing the number of bits needed to represent something which some information is lost or thrown away. Process is not reversible.

Question 13

Copyright

Answer 13

Gives several creators’ rights to people producing creative work and decide who can make copies, distribute copies, display or perform work in public, and make derivatives

Question 14

Fair Use

Answer 14

Allows use of copyright protected work without permission. No hard fast rule about what counts as fair use.

Question 15

Public Domain

Answer 15

Creative work belonging to the public because copyright has expired or never applied in the first place.

Question 16

Intellectual Property

Answer 16

When you create materials on the computer, you own them.

Question 17

Creative Commons

Answer 17

A collection of public copyright licenses that enable 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 created.