But why McAfee? Intel is a chipmaker, not a "scare 'em then sell 'em" security-software outfit. Otellini's answer was architectural. "We have concluded that security has now become the third pillar of computing," he told his listeners, "joining energy-efficient performance and Internet conductivity in importance."And that third pillar, Otellini believes, will be best implemented in silicon, not software. "We believe that security will be most effective when enabled in hardware," he said. "Joining the assets of McAfee with Intel will accelerate and enhance the combination of hardware and software solutions."Intel's head of software and services Renee James cast the acquisition of the software giant as business as usual. "The proposed acquisition of McAfee executes against Intel's software strategy to grow our business by using software to enhance hardware," she assured her audience. "We've done this successfully with over a dozen software acquisitions, including Wind River and Havok.