This is a 16 bit computer operating on 4-bit opcodes and 12-bit addresses. The control area is to the left of the mess. It is capable of being programmed to load values from memory into registers A, B and C with the opcodes 1000 , 1001 and 1010 respectively. If this computer lags, decrease the clock speed until the components can catch up. It is now unable to do arithmetic, but future developments may lead to this reality.