Craddock, Chris wrote:
The most common box used for "authorizations" is what used to be
called
Tandem. Mainframes do much else. They stand at short arm's length to
each other.
[<CLC>] Tandems were used in many online banking applications as
front-end switches. They didn't really process the transactions beyond
queueing and sending them on to the right place. Their "non-stop"
reliability was important to avoid lost transactions back in the day
when CICS couldn't keep up. Probably not so much of an issue today, but
they're probably still doing yeoman work in the same places they were in
1983 when I first bumped into them.
CC
Chris,
I just opened last week's New Yorker magazine and found a
review of a new rap opera written by Chris Craddock. Way
to go, man!
Kind regards,
-Steve Comstock
The Trainer's Friend, Inc.
303-393-8716
http://www.trainersfriend.com
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