SAN FRANCISCO--After years of trying to get people to switch to Macs from Intel-based computers, Apple Computer itself has switched.
Jobs' announcement formed the centerpiece of a keynote speech to Mac programmers attending the company's annual Worldwide Developer Conference here. The conference, expected to draw some 3,800 attendees this year, is a traditional venue for Apple product launches.In his speech, Jobs revealed that Apple has been developing all versions of OS X since its inception to run on both Intel and PowerPC chips.
"Mac OS X has been leading a secret double life the past five years," he said.
The CEO showed a demo of the Tiger operating system on an Intel-based machine, saying, "We've been running on an Intel system all morning."
The move to Intel marks a tectonic shift for Apple, which has used processors from IBM and Motorola (now Freescale Semiconductor) throughout the life of the Mac. However, the company has changed architectures before, shifting in the 1990s from Motorola's 68000 family of chips to the PowerPC architecture jointly developed by IBM and Motorola.