Computer History

• 1977 first electronical kit
• 1979 digital electronical kit
• From 1981 on first computer experience at high school with CBM 3032
• From 1983 on owner of a C-64 with Datasette, later a Floppy. At that time excellent knowledge of C-64 Hardware-, BASIC and Assembler. Biggest selfwritten program was a text processor written in Forth and Assembler, also I wrote a simple database.
• 1985 at school course based on 8085-computers, good knowledge of hardware and software.
• 1986-1992 Study of information science at university of Hamburg with science of business as addition. Special sections were computer graphics (2 and 3D), static-/FEM-calculation and Operations-Research.
• From 1987 on proud owner of a ATARI-ST, later also of a 20MB harddisc. At the beginning programming of 68000-Assembler later only C-programming. I created a lot of various small programs and two bigger ones. One was a net planning program using a graphical user interface, the other was my dissertation, a nesting program called Polygonplacer.
• After study I worked form 1993 to 1998 in the EDP-department of a company producing pipe hangers. I was responsible at there on the adaption and expansion of the standard-ERP-package EKS to the needs of the company. This included the development of some EDP-organisation schemes inside the company.
• From 1994 on an RISC OS based Acorn RiscPC600 replaced my ATARI ST. On the Acorn I created a simple Signum to TEX / Impression Style converter, a (slow) Fileprotection-System, a CEPT-Decoder (which no one wanted to buy), and a system to realize telephone answering machines, a HTTP Server, an USB Stack for RISC OS, a scan program for EPSON 1650 USB-Scanner, an universal printer driver etc.. Of course I ported my dissertation to RISC OS. It runs on a 200 Mhz Strong-ARM approximately 100 times faster than on the ATARI ST...
• From 1998 to 2019 I worked at a shipping company. I programmed EXCEL using VBA/EXCEL 4 Macros, the OLAP-Database TM1, VBA in conjunction with ACCESS, standalone Visual Basic programs and in most of the time ORACLE PL/SQL, Forms and Reports. Again I developed some EDP-concepts.
• From March 1999 on I am also used a PSION Serie 5 pocket computer with the operating system EPOC on which I did the most of my private software development on the way to my regular job. Therefore I developed a file converter which converts PSION file into formats which can be used under RISC OS.
• Since February 2004 I bought myself a RISC OS based Iyonix-PC as an addition to my Acorn RiscPC600.
• In April 2004 the weared out PSION S5 was replaced by a DBOOK1 with Windows CE. Unfortunately no other operating system was available for the quite good hardware.
• End of 2010 I bought a BeagleBoard xM which I am running under RISC OS. It nearly replaced my Iyonix. At that time I wrote the SMSC driver part for the EtherUSB module to access the Ethernet interface of the board under RISC OS.
• Mid of 2011 the DBOOK1 got broken finally despite of a couple of repairs and a reconstruction to switch from Lithium ionic to NiMH battery pack. I replaced it in spring 2012 by a selfbuild BeagleBoard xM based attache case computer which I am running under RISC OS of course. To be able to communicate mobile I develeoped the COMCentre program collection to support UMTS USB sticks.
• End of 2014 I started the construction of a laptop computer called KlappPi, which was finished in spring 2015. At first the KlappPi was based on a Raspberry Pi B, which was replaced by a Raspberry Pi 2B later. The old Raspberry Pi B is acting since this time as web server for this website.

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