AP®︎ CS Principles Unit 2: Notes & Study Guide
Prepare for your quiz, test, or the AP exam with a comprehensive review on Unit 2 of AP CS Principles – Data.
Unit 2: Data
This unit examines how data is collected, represented, analyzed, and used to discover patterns and support decision-making.
Begin with Topic 2.1: Binary NumbersTo review Unit 2, go through each of the 4 topics below.
Everything you actually need to know for your Unit 2 test, pulled directly from the AP® Computer Science Principles curriculum.
Binary Numbers
Binary Numbers
- Bits Are the Building Blocks of All Data
- Binary and Decimal Number Systems
- Representing Analog Data Digitally
Data Compression
Data Compression
- What Data Compression Is
- What Determines How Much a File Can Be Compressed
- Types of Data Compression
Extracting Information from Data
Extracting Information from Data
- What Information Is in Data
- What You Can Extract From Data
- What Metadata Is and Why It Matters
Using Programs with Data
Using Programs with Data
- Programs Turn Data into Information
- Core Data Processing Operations
- Tools That Help You Find and Organize Information
Notes
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