TCG continues to revise the TPM specifications keeping it up with current needs. Each part consists of a PDF that makes up the whole of the new TPM specification.
When a new revision is released it is broken down into 3 parts by the Trusted Computing Group. Trusted Platform Module (TPM) was conceived by a computer industry consortium called Trusted Computing Group (TCG), and was standardized by International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) in 2009 as ISO/IEC 11889.
