
Introduction to Computer Science: A Friendly, Real-World Guide to How Computers, Code, and the Internet Actually Work
Thomas Gallagher
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Opening Credits
1/13/2026
Chapter 1: Beyond Tapping and Swiping What Computer Science Really Is
1/13/2026
Chapter 2: From Light Switches to Selfies How Computers Store Information
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Chapter 3: Inside the Thinking Machine How Processors Follow Instructions
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Chapter 4: Recipes for Problems Algorithms and Why Speed Matters
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Chapter 5: Thinking in Code Variables, Logic, Loops, and Functions
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Chapter 6: Organizing Digital Stuff A Gentle Tour of Data Structures
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Chapter 7: The Invisible Ringmaster How Operating Systems Keep Things Running
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Chapter 8: From Your Device to the World How Networks Connect Computers
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Chapter 9: Under the Hood of the Internet and the Web
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Chapter 10: Staying Safe and Looking Ahead Security, Privacy, and the Future of Computing
1/13/2026
Closing Credits
1/13/2026