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Among the problems that must be solved if even more powerful but smaller computers are to become viable propositions is the heat computer circuits generate. The present market leader, with 300, 000 chips in 100 cubic feet, requires a powerful refrigeration system; the 5 kind of super-computers now being discussed might cram half a million chips into a space the size of a shoe box, and would probably need a bath of liquid nitrogen to keep them from melting.
1. According to the passage, Los Angeles
2. It may be inferred from the passage that
3. When the first time the Olympic games were held there, Los Angeles was