ITGS Chapter 8 - Computer Models and Simulations
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Created by:
itgs on April 9, 2012
Subjects:
IT, ICT, Computing, itgs, information technology in a global society
Description:
Key terms for the ITGS topic 'Computer Models and Simulations'. These relate to chapter 8 of the textbook (www.itgstextbook.com).
Classes:
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31 terms
Terms | Definitions |
|---|---|
 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. |
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