IBM introduced the z9 line of mainframe computer that is <A HREF="http://www.nytimes.com/2005/07/27/technology/26cnd-ibm.html?ei=3D5090&en=3D">twice as powerful as its predecessor</A>. The new IBM mainframe is also designed to make it easier for companies to increase the security of customer information stored in their computers and to manage data security.