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9 Cards in this Set
- Front
- Back
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What are ‘Turtle’ graphics?
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A ‘turtle’ is an on-screen object that follows command given to it by the user. As the turtle moves around the screen it drags a ‘pen’ that leaves a trail behind it.
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How Can Computers Control Things?
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Input devices (sensors) feed data into the computer.
The computer then processes the input data (by following a set of instructions) As a result of the processing, the computer can turn on or off output devices (actuators). |
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What are the different types of sensors?
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Temperature
Light /dark Pressure Moisture Dampness / dryness Water-level Movement Proximity Switch or button |
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What are the different types of actuators?
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Light bulb or LED
Heater Cooling Unit Motor Pump Buzzer / Bell / Siren |
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Where is Computer Control Used?
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Many of the devices that we use in our everyday lives are controlled by computers.
(such as washing machines air-conditioning systems programmable microwave ovens) |
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What is a Computer Model?
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A computer model is a computer program that attempts to simulate a real-life system (virtual version of something in the real-world).
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Why Are Computer Models Used?
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To test a system without having to create the system for real.
To predict what might happen to a system in the future. To train people to use a system without putting them at risk. To investigate a system in great detail. |
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Examples of Computer Modelling?
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Designing Safer Cars
Weather Forecasting Building Better Bridges Running a Business Training Pilots to Fly an Airplane |
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Why Use Computers to Control Thing?
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Computers never need breaks Computers don’t need to be paid.
Computers can operate in conditions that would be very hazardous to human health Computers can control systems far more accurately, and respond to changes far more quickly than a human could |
