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: Sun Unveils Free Solaris Sun Microsystems Inc. today is expected to unveil the much-awaited free version of its Operating System, Solaris 10, which the company is betting on to help neutralize the open-source threat and increase profitability.

Sci/Tech