Trusted computing is a way for computers to always be secure and trustworthy. It uses special technology to make sure that only trustworthy software and programs can be used on a certain computer, and that nothing else can run on it. To do this, data is stored in a special place on a computer called a "TPM" (Trusted Platform Module). This makes it so only programs that are marked as 'trusted' by the TPM can be used on the computer, and nothing else can be used.