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# Models & Simulations

### ITGS Topic 7 Key Terms of Models & Simulations

TermDefinition
Absolute cell reference In a spreadsheet, a cell reference which does not change when moved.
Assumptions Often made during the construction of a computer model, as part of the simplification process.
Car crash model Used to predict the results of car crashes.
Cell format In spreadsheets, the properties of a cell such as its colour, font, and cell type.
Cell range In spreadsheets, reference to a range of continuous cells.
Cell reference In spreadsheets, a combination of row number and column letter to refer to a single cell (e.g. A2).
Centralized processing Single computer with multiple processors working on a task.
CFD Computational Fluid Dynamics. A technique used to model airflow in computer models.
Climate model Computer model used to predict possible future climate change.
Computer model Mathematical representation of the real world using computer software.
Computer simulation Based on computer models, gives users experience of events such as flying a plane.
Decision Support System Use of models or expert systems to aid (business) decision making processes.
Distributed processing Use of multiple separate computers working together on a common task.
Feedback loop Comparing the results of a computer model to actual (real life) results, and using the differences to improve the model for the future.
Flight simulator Simulator hardware and software used to train pilots.
Formula In spreadsheets, a combination of cell references and mathematical operations.
Full motion platform Hardware device which can move in many directions to increase the realism of simulators.
Function Built in features of spreadsheets for performing common calculations.
Global Climate Model Computer model used to predict possible future climate change.
Goal seek Spreadsheet tool used to determine the required values to meet a certain goal.
Grid computing Use of multiple separate computers working together on a common task.
High performance computing High speed computing using multiple processors
Parallel processing High speed computing using multiple processors
Prediction Output of a computer model.
Relative cell reference In a spreadsheet, a cell reference which updates when moved.
Simplification Difference between a computer model's representation of a process, and the real life process.
Spreadsheet Application software for performing numerical calculations and analysis.
Supercomputer Fastest computers available, capable of performing trillions of calculations per second.
Variables Components of a computer model which can be altered to vary the output.
Visualisation Graphical or animated output from a computer model or simulation.
What-if scenario Use of a computer model to test the results of different situations and scenarios.
Created by: ncassar5