17 May
2013
17 May
'13
6:34 p.m.
John Wilson wrote:
this is a ridiculous security risk
so that's why MOP had a magic number
Yep, even the DMR has a boot "password", which is just an 8 bit value set
by dip switches on the board, that has to match up with the MOP message.
They DMA a small program into memory
Ah, I was wondering about that, because there aren't any separate boot
ROMs on the DEUNA. I bet the "small program" is just part of the T11 code.
And I'm assuming that this scheme didn't work on any UNIBUS VAXes - only
PDPs.
Bob