F E T C H · D E C O D E · E X E C U T E

A Von Neumann CPU running a tiny program. Watch each micro-operation move data across the buses between RAM, registers and the ALU.

Speed

Program: LDA 5 · ADD 6 · STA 7 · OUT · HLT with data 7 and 5 in cells 5 and 6. It loads 7, adds 5, stores 12 in cell 7, then outputs 12. Buses are colour-coded: address, data, control, internal, ALU.