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: IBM, AMD Speed Chips, Strain Wafers  SAN FRANCISCO (Reuters) - Researchers at IBM &lt;A HREF="[Link] target=/stocks/quickinfo/fullquote"&gt;IBM.N&lt;/A&gt; and  Advanced Micro Devices Inc. &lt;A HREF="[Link] target=/stocks/quickinfo/fullquote"&gt;AMD.N&lt;/A&gt; have improved a chip-making  technology called strained silicon, boosting  semiconductor  performance at a time when such gains are increasingly hard to  come by, the companies said on Sunday.

Business