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: Microsoft Schedules Second Longhorn Event Microsoft has set a date for a second Longhorn-themed Professional Developers Conference (PDC). The event will be held in September 2005, almost two years after the company first detailed the Windows XP successor at the 2003 PDC.

Sci/Tech