Since 1970 I'm professionally occupied with a lot of different tasks in the
information and communication technology. That combination of those
different tasks makes for me this profession so attractive. Although I have
been able to skip some aspects like desktop automation (think of desktop
computing with MacOS, DOS and Windows) en salary administration. In
the latter case people aren't happy with even minor errors ;-).
Some people have faces problems in their private live because of the long
working hours in the ICT business. Because my wife works already longer in
this business than I do I've not faced such problems.
My desktop computers are running GNU/Linux since 1997 with an ever changing
variety of desktop environments and window managers. Just because I prefer choice.
Before 1997 I didn't use a desktop computer but terminals connected to mainframes
and UNIX computers. For this reason I really question why so many people were talking
about "Linux on the desktop is dead" in the year 2001. And before I forget, all the
laptop computers here are happily running GNU/Linux too.
Baanvak
1970
|
Optimization of the statistical program for railway usage of the Dutch Railways. The
change of some field definitions from DISPLAY to binary format saved because of the
big tables much memory and because of the disappearance of the data format
conversions a lot of cpu instructions.
(COBOL)
|
DUMP
1971
|
IBM's DOS for 360 extended with a dump routine, that saved a boot cycle after
execution of every dump.
(Assembler)
|
STAT
1972-1975
|
Statistical system for the processing of (mostly sociological) inquiries.
(Fortran)
|
CLA
1977-1981
|
Central Member Administration for AVEBE.
(COBOL)
|
DP2
1981-now
|
Together with Du Prie DP Engineering this 4GL further developped and maintained.
This 4GL supports the development and maintenance phases of applications.
With this tool build systems are running for about 20 years on quite different systems
like Siemens BS2000, IBM mainframes and UNIX.
(COBOL)
|
MAVIS
1986-1992
|
A MIS (Management Information System) for Marketing and Sales of AVEBE.
The system consisted of central and decentral components.
(COBOL)
|
MOAP
1990-now
|
makes the use of remote printers from Siemens BS2000 mainframes possible,
with a mainframe and a pc component.
(COBOL en Assembler)
|
FTPM
1993-now
|
The former MTPM is a transaction processing monitor (think CICS) for Siemens
BS2000 systems. It supports multiple user applications in different user
environments (user id's).
(COBOL en Assembler)
|
MDDS
1993-now
|
The Data Distribution System, with which any type of data in a planned way can be
distributed under the control of the application administrator. The transmission initiative
can be at the server side as well as the client side.
(COBOL en Assembler)
|
FORASS
1995
|
A prototype of a heavily optimized FORTRAN compiler, thus reading FORTRAN
sources and generating Assembler code. The results saved the customer about 50 %
of the cpu cycles. You can find the sourcecode here as
forass.cbl.gz. It is available under the
GNU General Public License (GPL).
(COBOL)
|
