From Troy, in the ancient Greece. In computer science is a type of malware (malicious virus) that is inserted into computers to get information to a remote operator. In astronomy are called satellites and asteroids Trojans who are located in Lagrange L4 and L5 points. More than 4000, most of Jupiter, there is until now discovered land 1, 4 Mars, Saturn 4 and 6 of Neptune.
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