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Working with IBM mainframes
Born in 1950 I am working with IBM mainframe operating systems since 1982. I started as operator and studied the DOS/VSE
operating system and its components like Power, Vsam, CICS and so on. On January 1th, 1984 I got the opportunity to
work as systemsprogrammer. In 1986 I became consultant, since 1991 I am working as a freelancer.
If You need more information about my professional experiences, please let me know and I will send You a detailed
professional profile. |

| CPUs | IBM 4331 | 1 y. |
![]() | IBM 4341 | 2 1/2 ys. |
| IBM 4381 | 2 1/2 ys. | |
| IBM 3090 | 3 ys. | |
| compatible machines of other companies | ||
| Operating Systems | VM/SP Rel. 2, 3, 4, 5 | 6 ys. |
| VM/XA SF 1, 2 | 2 ys. | |
| VM/XA SP 2.0, 2.1 | 1 y. | |
| DOS/VSE Rel. 1.3 | 3 1/2 ys. | |
| VSE/SP 2.1 | 1 y. | |
| MVS/XA | 1 y. | |
| OS/2 Version 2.0, 2.11, Warp 3 + 4 | 6 ys. | |
| IBM-Components | CICS/VS (VSE u. MVS) 1.5, 1.6, 1.7 | 8 ys. |
| CICS/MVS 2.1 | 2 ys. | |
| VM/CMS | 8 ys. | |
| TSO, ISPF/PDF | 4 ys. | |
| ICCF | 3 ys. | |
| Databases | DL/I resp. IMS/DB | 3 ys. |
| MySQL | 5 Jahre | |
| Non-IBM products | ROSCOE | |
| VOLLIE | ||
| DYNAM-Family | ||
| ACF2 | ||
| other products in all Operating Systems | ||
| Installations a.o. | VM nativ and under VM (all versions and releases) | |
| DOS/VSE nativ and under VM | ||
| VSE/SP 2.1 under VM | ||
| Installation and maintenance of these components in all Operating Systems | ||
| Migration DOS/VSE to MVS/XA | ||
| CICS-Exits, PLTPI-programs, VTAM System Management Exit | ||
| Programing Languages | Assembler 370 | 15 ys. |
| C (IBM-C-Set) | 3 ys. | |
| Programing | Assembler for CICS with Macro- and Command-Level (with DL/I too) | |
| Assembler for Batch in all Operating Systems (with DL/I too) | ||
| Programs in C for the OS/2 Presentation Manager | ||
| Migration CICS Assembler Macro Level to Command Level | ||
| Procedures | Rexx | 14 ys. |
| Exec2 | 8 ys. | |
| Clist | 1 y. | |
| php | 5 Jahr | |
| Updated in Dicembre 2000 | ||