A modelling program allows the user to simulate the real situation.

BASIC and Pascal cannot be used for modelling and simulation.

A spreadsheet is a software package for developing models.

In a spreadsheet it is very easy to change an entry and immediately see the effect of this change.

Simulation programs do not contain models.

Dynamo and Simula are specific simulation languages.

Simulators are used to represent some aspect of the real world.

Many computer games are modelling and simulation systems.

Parallel processing decreases the speed of computation.

Analogue computers contain A/D converters.