Sony VGN-TT250N - Manual (Page 132)

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Customizing Your VAIO Computer
Using the Trusted Platform Module (TPM)
The Trusted Platform Module (TPM) is embedded in selected models only and provides your computer with basic security
functions. In combination with the TPM, you can encrypt and decrypt your data to strengthen computer security against
inappropriate access.
TPMs are defined by Trusted Computing Group (TCG) and also called security chips.
See the online specifications to find out whether your model is equipped with the TPM.