"All biological systems ... are natural molecular computers.
Every one of us is a biomolecular computer, that is, a machine in
which all components are molecules "talking" to one another in a logical manner.
The hardware and software are complex biological molecules that activate one another to carry out some predetermined chemical tasks. The input is a molecule that undergoes specific, programmed changes, following a specific set of rules (software) and the output of this chemical computation process is another well defined molecule."
Ehud Keinan, American Technion Society