On 9/22/2015 11:23 AM, Mike Schwab wrote:
One of the comments:
Re: SIMH
Looking around at some of their purchase orders, it would seem they
have Unisys mainframes running COBOL applications supported by a
proprietary ISAM-type database engine, as well as more modern
applications written in PowerBuilder with Sybase underpinnings.
Part of the problem they appear to have is the fundamental conceptual
mismatch between ISAM and modern relational data stores makes it very
hard to migrate the data without significantly rewriting the
applications that currently process it. It's not a matter of simply
getting off the mainframe hardware, it's getting off DMS II that's the
challenge if they're going to be able to move forward.
ISAM? Non-Y2K compliant ISAM? Shirley you can't be serious.
PowerBuilder? Sybase? Yikes.
Regards,
Tom Conley
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