since Toy Story, A Bug’s Life and Toy Story 2. His main role at Pixar was negotiating with Disney, which left him plenty of time to run Apple. He had turned the Cupertino firm into a leader in computer innovation again, steadily refreshing its product line and pioneering new technologies.

## Mac OS X

But the biggest news was probably the unveiling of Apple’s new operating system, Mac OS X. Mac OS X was the result of three years of hard work by all of Apple’s software engineers to port NeXTSTEP to the Mac platform. The new system felt like an evolved version of the Mac OS, but people familiar with NeXTSTEP felt home too.

Let’s have a look at the system’s architecture to see what we mean.

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