Programming From Zero

What a program actually is, the building blocks every language shares (variables, types, operators), and how code makes decisions and reuses work with if/else, loops, and functions.

1. What a Program Actually Is A program is a precise list of instructions a computer follows in order, top to bottom, doing exactly what you wrote and nothing else; your first example is one line that prints text.
2. The Building Blocks: Variables, Types & Operators Variables are named boxes that hold values; values come in types (numbers, text/strings, booleans); operators do math and comparison - and = means assign while == means compare.
3. Making Decisions & Reusing Work: Control Flow & Functions if/else lets a program branch on a condition, loops repeat work without copy-paste, and functions bundle instructions into a named, reusable tool you call by name - the most powerful idea a beginner can learn.