This book proposes an intuitive method to understand the basic computer architecture with simple tools using spreadsheets to realize it progressively. Readers can even go further and create their own tools. This computer architecture learning method starts with the NMOS transistor from which gates are constructed, then used to create more complex circuits. The Von Neumann machine is presented as a typical example with the basic addressing methods and data/control paths. All is created and tested with the active help of the reader. The assembly language concept is introduced as well as the two-pass assembler. The translation of a high level language program into assembly is shown. More sophisticated mechanisms as programmed I/O and interrupts are also covered. This book and associated exercices and labworks, is intended for beginners or Bachlor/Master students in computing science, and for future teachers of computer architecture.
