My name is Michael Müller. I had the first contact with a computer during a stay in England 1979. Proudly they presented me an Apple microcomputer.

At that time, electronics had been a great hobby to me and beside school I started jobbing in a TV shop 1980. Via electronics I came to digital technics and finally to computer science. 1982 I bought my first personal computer, a Commodore CBM 8032 with a great memory of   32 KByte. Yeah, that time 16 KB had been a kind of standard memory size.

Even though I made in electronics some years after my university entrance diploma, I concentrated on software development, which still is a main part of my today’s activities.

In 1983, beside my CBM 8032, I owned a Commodore 64. With these machines and another two from friends, I worked as an associate professor in further education. Later on, the institute could use the computers from my former school. So carrying my own equipment ended.

Pet2001Apx. by this time I got a Commodore PET 2001. It was out of order, but with the help of my experience I simply could repair it. Today it still shows some characters on screen. Nothing meaning-full anymore. And my CBM 8032 is out of order since my cellar was flooded.

This picture shows the PET 2001 how it looks today.

Later on, I produced a lot of software for the DOS, like online control of measurement devices, product controlling, invoicing, inventory control. For more than 25 years I’m now working full-time in the domain of healthcare IT. First with some lab info systems, where I worked on main parts of a (at that time) brand new system, and today at the Institut für das Entgeltsystem im Krankenhaus which develops the German DRG system. The DRGs (diagnoses related groups) are used for hospital reimbursement. This is a unique challenge and a couple of complex specialized software products have to be developed, to support the annual refinement process. As head of development, I have to manage these projects, but beside administrative work, I still have o lot of time to wear the cap of an architect and developer.

During these years, I not only had to learn a couple programming languages, but a lot of soft skills, consulting and project management, and gained international experience. Beside that, I’m still interested in learning new topics of computer science and healthcare. This is the reason to read lots of books and write reviews. You’ll find them printed or online, as well as listed on my site And I’m still interested in common computer technics. This is the reason to operate this blog system including server and some other hardware by myself.

But one of the most effective ways to learn new stuff is to teach others. Writing articles in this blog, as well as for other blogs or printed media, forces me to deal with these subjects deeply. I would be proud, if this blog helps you to improve your knowledge.

I manage my writings during my spare time. Thus, it might be irregular. The biggest project is my book “Web Development with Java and JSF” [1]. Beside that, I wrote the book “Java Lambdas and parallel Streams” [2]. I would be glad, if you purchase a copy of my books. Thereby you’ll support this blog.