Models and simulations

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31 Terms

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absolute cell reference

In a spreadsheet, a cell reference which does not change when moved.

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assumptions

Often made during the construction of a computer model, as part of the simplification process.

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car crash model

Used to predict the results of car crashes.

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cell format

In spreadsheets, the properties of a cell such as its colour, font, and cell type.

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cell range

In spreadsheets, reference to a range of continuous cells.

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cell reference

In spreadsheets, a combination of row number and column letter to refer to a single cell (e.g. A2).

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centralized processing

Single computer with multiple processors working on a task.

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CFD

Computational Fluid Dynamics. A technique used to model airflow in computer models.

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climate model

Computer model used to predict possible future climate change.

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Computer model

Mathematical representation of the real world using computer software.

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Computer simulation

Based on computer models, gives users experience of events such as flying a plane.

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Decision Support System

Use of models or expert systems to aid (business) decision making processes.

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distributed processing

Use of multiple separate computers working together on a common task.

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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.

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flight simulator

Simulator hardware and software used to train pilots.

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formula

In spreadsheets, a combination of cell references and mathematical operations.

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full motion platform

Hardware device which can move in many directions to increase the realism of simulators.

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function

Built in features of spreadsheets for performing common calculations.

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Global Climate Model

Computer model used to predict possible future climate change.

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goal seek

Spreadsheet tool used to determine the required values to meet a certain goal.

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grid computing

Use of multiple separate computers working together on a common task.

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high performance computing

High speed computing using multiple processors

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parallel processing

High speed computing using multiple processors

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prediction

Output of a computer model.

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relative cell reference

In a spreadsheet, a cell reference which updates when moved.

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simplification

Difference between a computer model's representation of a process, and the real life process.

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spreadsheet

Application software for performing numerical calculations and analysis.

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supercomputer

Fastest computers available, capable of performing trillions of calculations per second.

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variables

Components of a computer model which can be altered to vary the output.

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visualisation

Graphical or animated output from a computer model or simulation.

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What-if scenario

Use of a computer model to test the results of different situations and scenarios.