This document discusses computer simulation and modeling. It defines computer simulation as creating an imitation of a real-world system on a computer in order to experiment with and observe its behavior. The key steps in simulation are defining the system, formulating a model, collecting input data, translating the model, verifying results, and experimenting. Applications include weather forecasting, design of vehicles, architecture, and aeronautics. Computer simulation provides advantages like testing systems without building them physically and training for risky tasks virtually. Limitations are reliance on the model maker's skills and the time and costs involved.

1. CS-097
Muhammad Hassan
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2. Computer Simulation and
Modeling
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3. Contents
 What is Computer Simulation?
 Process of simulating a system
 Applications
 Advantages and Disadvantages
 Conclusion
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4. What is Computer Simulation?
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Computer simulation is :
 The process to create an imitation of real world
system or physical object into a computer model.
 Performing experiments to understand the
behavior of system and evaluating new
strategies.
 Then observing events, processes, properties
and behavior of system, with computer model.

5. Example
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Circuit
Designing
Real world
system
Computer Model
• EWB
• Proteus
• MULTISIM
Experiment
s
Output

6. Process of Simulating a System
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System
Definition
Model
Formulation
Input Data
Collection
Model
Translation
Verification
Experimentation Documentation

7. Applications of Computer Simulation
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APPLICATION
S
Architecture
Weather
Forecasting
Aeronautics
Designing

8. Weather Forecasting
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 Computer simulation of weather forecasting can
be used to predict storms
 The wind, rain pattern and temperatures e.t.c for
the whole planet are simulated using very
powerful computers.
Application of Computer
Simulation

9. Simulation of a storm
A 48 hours simulation of storm by weather and research model
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10. Designing
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 Simulations software are used to design safer
cars and improve their designs ( performing real
car crash just to check design stability is very
expensive)
Application of Computer
Simulation

11. Simulation of car crash to study safer
design
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12. Designing
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 Simulations software are used to design safer
cars and improve their designs ( performing real
car crash just to check design stability is very
expensive)
 Design of ships are also simulated first to achieve
more perfection
Application of Computer
Simulation

13. Simulation of ship design
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14. Designing
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 Simulations software are used to design safer
cars and improve their designs ( performing real
car crash just to check design stability is very
expensive)
 Design of ships are also simulated first to achieve
more perfection
 Circuit Designing
Application of Computer
Simulation

15. Architecture
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 Design stability of buildings are checked by
simulation of earth quake through simulation
software
 Bridges are also simulated to check how much
load they can resist, and what improvement can
be made
Application of Computer
Simulation

16. Earth quake simulation to check
building stability
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17. Bridge simulation
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18. Aeronautics
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 Trainee pilots have many hours of lesson in flight
simulators before being allowed to fly an
airplanes.
 These simulators provide realistic flying situation
like storms, engine failure…
 This experience help them to tackle such
situation in real, as they have gained a bit
experience.
Application of Computer
Simulation

19. Flight simulation software
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How many airplanes are flying in
the world right now?

21. Live Web-based Simulation of Air Traffic
Visit www.flightradar24.com
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22. Advantages of Computer
Simulation
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 To test a system without having to create the system
for real (Building real-life systems can be expensive,
and take a long time)
 To predict what might happen to a system in the
future (An accurate model allows us to go forward in
virtual time to see what the system will be doing in the
future)
 To train people to use a system without putting them
at risk (Learning to fly an airplane is very difficult and
mistake will be made. In a real plane mistakes could
be fatal!)
 To investigate a system in great detail (A model of a
system can be zoomed in/out or rotated. Time can be
stopped, rewound, etc.)

23. Disadvantages of Computer
Simulation
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 It depends upon the skills of the model maker
 Time consuming and high cost
 Sometimes, it does not give the best solution for
system

24. Conclusion
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 Computer Simulation and Modeling software are
very useful in many areas.
 It gives great understanding of a system and also
predicts the behavior of system in different
situation
 The Big picture…

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