Computer modeling is the process of creating a digital representation of a real-world system or phenomenon. This involves using mathematical equations and algorithms to simulate how the system behaves under various conditions. Models can be used in fields like engineering, environmental science, and economics to predict outcomes and analyze complex interactions. These models can range from simple representations to highly detailed simulations. For example, a weather model might simulate atmospheric conditions to forecast the weather, while a 3D model in architecture helps visualize a building's design. Computer modeling allows researchers and professionals to test scenarios without the risks or costs associated with real-world experimentation.