The Trusted Computing Platform Alliance (TCPA) was a collaborative initiative involving major industry players. Unfortunately, there are several aspects of trusted computing that are often misunderstood—in particular, its relationship to the controversial idea of Digital Rights Management (DRM). We will not discuss the pros and cons of trusted computing here: far too many expositions haven been written both for and against the concept. The purpose of this document is to discuss a specific piece of hardware found in certain Apple computer models: the Trusted Platform Module (TPM).