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APIntro

AP Computer Science Principles

Explore programming, data, the internet, and cybersecurity in a broad CS foundation course.

📚 5 units🤖 AI-guided support✅ Practice questions included

Course Units

2025–26 College Board CED

1

Creative Development10–13% of exam

Program Purpose, Function, and Design

Collaboration in Program Development

Program Documentation and Readability

Debugging and Testing Strategies

Programming Languages and Abstraction Levels

2

Data17–22% of exam

Binary, Data Representation, and Bits

Data Compression — Lossless vs. Lossy

Metadata and Data Collection

Big Data, Processing, and Visualization

Data Analysis and Inference

3

Algorithms and Programming30–35% of exam

Variables, Assignment, and Data Types

Conditionals — IF, ELSE, and Nested

Iteration — REPEAT and FOR EACH

Lists — Operations and Traversal

Procedures and Parameters

Abstraction in Programs

Algorithm Efficiency and Undecidable Problems

Create Task Requirements — Program with Purpose

4

Computer Systems and Networks11–15% of exam

The Internet — Protocols and Packets

Internet Security — Encryption and Authentication

Fault Tolerance and Redundancy in Networks

Cybersecurity Threats and Protections

Parallel and Distributed Computing

5

Impact of Computing21–26% of exam

Beneficial and Harmful Effects of Computing

Digital Divide and Equity

Intellectual Property and Licenses

Privacy and Data Collection

Algorithmic Bias and Fairness

Open vs. Closed Systems and Innovation

Computing and the Law — Legal and Ethical Issues