Programmable and parallel water computing

We further the work on a recently proposed membrane computing model which utilises decentralised water tanks interconnected by pipes with water flow controlled by valves. Although the system was shown to be universal, the system is complex and does not map to practical devices easily. We demonstrate that these water computing systems can ‘efficiently’ construct: (1) A programmable sequential, random-access machine (RAM), (2) a programmable exclusive read exclusive write (EREW) parallel random-access machine (PRAM). The resulting RAM and PRAM model presented in this paper is able to run different programs one after the other, with only needing to change the initial volume stored in the input tanks.