In order to find out how working models for computer exhibitions works you will have to do a few steps. You will first have to go online and download the books of information.
By hand
It could be argued that computer models are used to make decisions, but it can be further counter-argued that computer models are developed by people and people are the ones who implement recommendations made by computer modeling.
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Make an orbit of elements
i wont tell the answer get lost
You could make a wooden shell to stick a computer in, but you can't make the working parts out of wood.
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Tim Berners Lee was the first to use WWW or World Wide Web. while working at CERN. He did this on the Next type computer models.
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So they can make sure their answer is correct