Computers computer intelligence and viruses

A computer is a machine for manipulating data according to a list of instructions. Modeling a real physical system in a computer is called simulation. The notion that the universe is a computer is as old as Isaac Asimov's story The Last Question in the '50s and work by computer scientists Ed Fredkin and Konrad Zuse in the '60s. The computer is frequently involved in assisting in the creation or discovery of new representations of information.