Virtual simulations allow users to interact with a virtual world.

The simulation allows researchers to explore the design space as well as to evaluate the performance and efficiency of novel microarchitecture features.

The simulation allows the player to be one of six animals: a hawk, a robin, a lion, a mouse, a fly or a butterfly.

A 10-week simulation for classroom use allows participants to invest a hypothetical $100,000 in the stock market.

Biological simulations may allow the player to experiment with genetics, survival or ecosystems, often in the form of an educational package.

Over most time scales, the effort is a success; only an unusually long-running simulation would allow a distinction to be drawn.

In the meanwhile, simulation buys time and allows us to pass the baton to the next generation which may well have to face similar problems.

These simulations allow weaknesses in an inspection system to be identified and rectified long before it enters practice.

Computer-based simulations allow students to test their theories, and do active experimentation with ideas.

The simulations allow them to make structural changes on the computer screen, before any metal parts have been built.