1. A computer, comprising: an internal hardware firewall configured to separate a protected side of the computer's hardware from an unprotected side of the computer's hardware, said protected side of the computer being located inside of said internal hardware firewall and including at least one microprocessor; said unprotected side of the computer being located outside of said internal hardware firewall and including two or more additional microprocessors; and said one or more unprotected microprocessors being separate from said internal hardware firewall.