does Pixar use PC or Mac for its 3d animation?

Question

also what does dreamworks use?

Answer 1

Interview with Pixar Animator ;

At Pixar we use proprietary software running on Linux-based PC's. At home I have a Mac G4 and a Pentium PC (both in need of an upgrade). My favorite software includes Photoshop, After Effects and Animation: Master. I like A:M for it's simplicity and it's great character animation tools. It also runs on Mac and PC and doesn't have demanding CPU requirements. I did my first animations in A:M and I've stuck with it ever since. The guys at Hash, Inc. who make A:M are friends of mine.

Answer 2

Attractive 3D Animation Software - http://3dAnimationCartoons.com/?xYaN