ProgramViz

How Programs Execute

A visual, step-by-step guide to understanding the journey of a program from source code to CPU instructions, memory management, and I/O.

How the processor fetches and runs instructions.

How data is stored and organized in RAM.

How programs interact with the outside world.

Learning Path

Understand what a program is and what it means to execute one

Understand how the CPU executes instructions

Understand fetch, decode, execute, and write-back

Understand how memory stores code and data

Understand how program memory is organized

Understand how programs interact with the outside world

Visualize a complete program execution flow