SIMULATION

A computer simulation, a computer model or a computational model is a, or network of computers, that attempts to simulate an abstract model of a particular system. Computer simulations have become a useful part of mathematical modeling of many natural systems in physics, chemistry and biology, human systems in economics, psychology and social science and in the process of engineering new technology, to gain insight into the operation of those systems or to observe their behaviour.

Here are some examples of simulation..

How food be digested??