-8bit architecture
-up to 16 byte of RAM
-4bit programm-counter
-subtraction and addition
-4 registers (one external 3 for addition/subtraction)
-editable commands
-16 * 4bit command RAM

You can write your commands with the levers on the blue wool and the data in the cyan wool section of the RAM.
Select the RAM-address by pressing the lever.

you can start/stop your Programm by switching the start Programm lever.
Let the computer make a step by pressing the programm-counter button.