Vitalistic Life

What is the difference between a computer and a person? It almost sounds like the beginning of a joke but the answer may surprise you. Let's look at the similarities first. Both can be programmed in order to complete certain tasks. In a person we call this learned intelligence. They can both be upgraded and learn more by being exposed to new information or software. Parts can be exchanged with other computers to repair them. They can both shut down for the night or actually be unplugged for good. So, then what is the difference?