In article ,
(Prowlus) writes:
Alisha's Addict wrote in message . ..
On Tue, 25 May 2004 22:22:43 +0100, "Ian"
wrote:




More news from The Register :
http://www.theregister.co.uk/2004/05/25/mod_leak/

Pete Lilleyman

(please get rid of ".getrid" to reply direct)
(don't get rid of the dontspam though ;-)

wouldn't "corruption" mean a faulty hard drive/memory unit that just
needs to be replaced? Surely that could be done a small amount of time
although can't see the point of the RAF cranking out so many
two-seater Tffies for training purposes. whats the point of buying the
advanced version of the Hawk then if their wasting money on pricey
trainer version of the typhoon?

It's unlikely to be a hard drive. (There shouldn't be one at all, for
a system like that)
Corruption, in the Real TIme System context, such as a Flight Centrol
System, ir Data Acq, or other such, menas that the program is stomping
all over its volatile data. In other words, the airplane doesn't know
where it it, what it has done, or what it's doing now. If you know teh
systems, and can read teh clues, it can be even worse than that. Many
real time systems copy their inital programs & state from non-volatile
storage (Prom, Eprom, or EEprom, or possibly Flash) to RAM to actually
run. (Far better access times with RAM). in that case, it's entire
possible for the system to stomp all over the running program, as
well. (Fandango on Core) wiping all of teh current state out.
Having this happen in flight would be Very, Very, Very Bad.

--
Pete Stickney
A strong conviction that something must be done is the parent of many
bad measures. -- Daniel Webster