AP Computer Science Principles

Advanced Placement Computer Science Principles exploring computational thinking and programming.

Introduction to Computational ThinkingProgramming BasicsAlgorithms and Problem Solving
Data Structures and AbstractionThe Internet and CybersecurityImpacts of Computing
Making Your First AppProgramming in Daily LifeCollaborative Computing Projects
Breaking Down ProblemsReading Questions Carefully
Introduction to Comp...Programming BasicsAlgorithms and Probl...Data Structures and ...The Internet and Cyb...Impacts of ComputingMaking Your First Ap...Programming in Daily...Collaborative Comput...Breaking Down Proble...Reading Questions Ca...
Advanced Topics

The Internet and Cybersecurity

How Computers Connect

The Internet is a global network that allows computers to communicate. Information travels in small chunks called packets, hopping from one computer to another to reach its destination.

Keeping Data Safe

Cybersecurity is about protecting information from bad actors. Encryption scrambles messages so only the right people can read them.

Common Security Practices

  • Use strong passwords.
  • Keep software up to date.
  • Be careful about sharing personal information online.

Real World Impact

Online banking, email, and social media all rely on the Internet and cybersecurity to keep your data safe.

Examples

  • Sending a secure message using encrypted apps.

  • Shopping online and making sure your credit card info is protected.

In a Nutshell

The Internet connects computers worldwide, and cybersecurity keeps our information safe.

Key Terms

Encryption
The process of scrambling data so only authorized users can access it.
Packet
A small chunk of data sent over the internet.
Firewall
A security system that controls incoming and outgoing network traffic.
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Impacts of Computing