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Windows 2000 Hosting

MainframesIBM S/390 Mainframe Computer

he majority of my experience has been in the mainframe area — as that is what I normally work with in my employment-type opportunities.  Almost all of that experience has been in non-MVS-type environments, too.  However, I'm confident that I still have much to offer (even in MVS-type environments) after the many years of strong experience and much accumulated knowledge in the areas listed in the table below.

Hint:  Don't believe all the hype that the mainframe is an outdated and overpriced concept that can easily be replaced by a minicomputer or a microcomputer network: achieving a significant reduction in staff and hardware costs without sacrificing power and functionality.  That is a myth.  For example, today's microcomputer (a.k.a., a PC) may seem cheaper and more powerful than a mainframe on the surface, but this is only because it services a single user.  Try attaching upwards of 10,000 users (which mainframes can easily handle, and more) and just see into what kind of troubles and costs you will run.  J

To request my services:
Consulting Fees
Free Program Offerings

Operating Systems

VSE/ESA, VSE/SP, & DOS/VSE Operating Systems Programmer &
Application Programmer/Analyst
Installed and maintained many releases of VSE over the years.  I also enhanced the operating system several times with code of my own — not to mention, much application programming and analysis.
VM/SP Operating Systems Programmer Installed and maintained releases 4, 5, & 6.
MVS/SP Database Programmer/Analyst &
Application Programmer/Analyst
I don't remember what release this was.  The database group was not part of the systems group — go figure.  Also, as an Applications Programmer/Analyst, I was not so concerned as to the release of the operating system.

System Software

VSE/ESA VM/SP MVS/SP
VSE/POWER VM/DIRMAINT JES2
VSE/VTAM VM/VTAM VTAM
VSE/CICS VM/CMS CICS/VS
VSE/ICCF VM/XEDIT TSO
VSE/VSAM ISPF/PDF DFEF/AMS
DL/I DOS/VS ISPF/LMF IMS/VS DL/I (IMS-DB)
FACS/VSE REXX RACF/AF
EPIC/VSE VSE/SP ISPF/PDF
VSE/BIM-EDIT   PANVALET
VSE/REXX REXX
COBOL II VS/COBOL
DOS/VS COBOL S/370 ASSEMBLER
S/370 ASSEMBLER APL language
DYL-280 COPICS II Applications
PRO-IV  
COPICS II Applications
ASI Applications
MSA Applications
Home-grown Applications

 

Dave Leonard Clark I
Phone/Fax: (937)291-8331

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