8 Jan
2013
8 Jan
'13
8:50 a.m.
On 01/08/2013 03:38 AM, David Cantrell wrote:
Every Ye Olde piece of computerised industrial
equipment I've seen has
some way of getting data into it, most have some way of getting data out
and many have some way of updating the software on them. Often it's
just a serial port that speaks some proprietary protocol, but having a
floppy (carefully protected from airborne oil and dust!) is pretty
common.
Sure, but consider the CNC machine as a virus. Those floppies used to
boot the controller often never get their write-protected status
changed. Boot the machine, download the design data, run the job. No
path for propagation. The floppy is used only as a bootup medium.
--Chuck