What you need is a lock.
DS
On 20 Jan 1997, Markus Gutschke wrote:
> - a system BIOS that has known backdoors, i.e. passwords that will
> always let you in?
>
> - a system BIOS that supports hot-keys for clearing the entire CMOS
> memory including the password?
[deletia]
> I still believe that the PC architecture does not provide any
> reasonable security, if you can gain physical access to the
> machine. Other architectures might be better off, but it appears that
> most of them still have some exploitable backdoors.