Intro to CS

What's inside

• Language-agnostic pseudocode — every concept taught in clean, readable pseudocode, so you learn the thinking behind programming instead of one language's punctuation
• "Explain Everything" examples — heavily commented code showing the right way and the classic traps (marked // WRONG:), with expected output shown inline
• Active recall built in — a Practice Challenge plus a harder Bonus Challenge on every chapter, with hidden solutions and a dedicated Challenge Answers chapter
• Built-in study tools — a live code runner and syntax explorer, plus a Pomodoro timer, session scoreboard, focus sounds and break games, all inside Notion
• Foundations & core logic — how computers think, variables and types, input/output, operators, conditionals, loops, and boolean logic with binary, hex and bitwise
• Data, functions & recursion — arrays and lists, strings, records, functions, scope and parameters, and recursion
• Object-oriented thinking — objects and classes, encapsulation, inheritance, and polymorphism
• Under the hood — memory, pointers and references, error handling and debugging, and file handling and persistence
• Algorithms & data structures — search and sort, complexity with Big-O, plus stacks, queues, linked lists, trees, graphs and hash tables
• 5 capstone projects — Number Guessing Game, To-Do List Manager, Grade Calculator, Bank Account System, and Contact Book with Search — each designed in pseudocode then implemented, with full solutions and a complete answer key