CAREER HIGHLIGHTS:
As a brilliant student at Carnegie Mellon, he helped create the state-of-the-art MACH operating system, which brought cross-platform capabilities and improved graphics to high-end workstations used by scientists and engineers. After joining Steven P. Jobs's NeXT Computer Inc. in 1988, Tevanian quickly rose to head of development for the company's core software. Since Apple's acquisition of NeXT in late 1996, Tevanian has led Apple's software development efforts.

EXPECTED TO TESTIFY:
That Microsoft has repeatedly tried to persuade Apple to divvy up the multimedia software business, with Apple focusing its QuickTime multimedia software on the Macintosh market, leaving Microsoft to set standards in the Windows world. But while confirming such efforts, Tevanian is not expected to skewer Microsoft -- but to argue that such discussions are standard practice in the fast-moving software business.