Below the surface of the machine, the program moves. Without effort, it expands and contracts. In great harmony, electrons scatter and regroup. The forms on the monitor are but ripples on the water. The essence stays invisibly below.
When the creators built the machine, they put in the processor and the memory. From these arise the two aspects of the program. The aspect of the processor is the active substance. It is called Control. The aspect of the memory is the passive substance. It is called Data.