CS Discoveries 2017

Unit 5

Vocab

Unit 5 - Data and Society

Lesson 2: Patterns and Representation

  • Decode: to change how information is represented so that it can be read by a person
  • Encode: to change how information is represented so that it can be read by a computer

Lesson 3: ASCII and Binary Representation

  • ASCII: American Standard Code for Information Interchange; the universally recognized raw text format that any computer can understand
  • 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 1

Lesson 4: Representing Images

  • Pixel: short for "picture element", the fundamental unit of a digital image, typically a tiny square or dot that contains a single point of color of a larger image.

Lesson 6: Keeping Data Secret

  • Decrypt: to change information so that its hidden meaning is shown
  • Encrypt: to change information so that its meaning is hidden