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 previews 64-bit XP, promises no price hikes Microsoft on Wednesday released public previews of the 64-bit editions of Windows XP and Windows Server 2003 as it changed the official names of the high-end operating systems. 

Sci/Tech