Coursify
Create New CourseGalleryContact

AP Computer Science Principles

Unit 1
Unit 1: Data
Introduction to DataData RepresentationData TypesData Structures
Unit 1 • Chapter 2

Data Representation

Video Summary

Data representation is the way data is stored and organized in a computer system. The most common data representations are: * **Numerical:** Numbers can be represented in binary, decimal, or hexadecimal format. * **Text:** Text is represented using a character encoding scheme, such as ASCII or UTF-8. * **Images:** Images are represented using a raster or vector format. * **Video:** Video is represented using a sequence of images. * **Audio:** Audio is represented using a sequence of samples. The choice of data representation depends on the type of data being stored and the operations that will be performed on it.

Knowledge Check

What is the difference between a bit and a byte?

What is the most common data representation scheme used for text?

Which of the following is not a data type in Python?