Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Mac Supercomputer Gets Performance Makeover The Apple-based System X supercomputer at Virginia Tech has been upgraded to run at 12.25 teraflops. The system placed third on the list of the world #39;s most powerful supercomputers last 

Sci/Tech