Where can an application programmer who can barely spell SVC and PC get an 
understanding of what these are?  (I know the SVC is supervisor call, but 
that's about it.)
-- 

Frank Swarbrick
Applications Architect - Mainframe Applications Development
FirstBank Data Corporation - Lakewood, CO  USA
P: 303-235-1403


On 4/22/2011 at 4:56 PM, in message
<snt113-w11ec58a5bdd48c549c593ec6...@phx.gbl>, john gilmore
<john_w_gilm...@msn.com> wrote:
> Gerhard Postpischl is of course quite right; trapdoors are necessary during 
> the development of much softwar; and they are useful for later 
> troubleshooting tooe.  
>  
> What has interested me more about this thread has been its preoccupation 
> with SVCs, which are at best obsolescent.  There is nothing anyone can do 
> with an SVC that I cannot do, much less obtrusively, with a PC-based scheme.
>  
> The focus of one poster's notionally savvy auditors on SVCs is yet another 
> example, if more be needed, of their preoccupation with safeguards against 
> yesterday's threats.  (I am reminded of the DEW Line, which we Americans and 
> our Canadian Allies managed to get operational only a year or so after the 
> last of the Soviet Union's Badger bombers it was to protect us against had 
> been retired.) 
>  
> John Gilmore Ashland, MA 01721-1817 USA
> 
> 
>                                         
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