This is the blog of Ronald Bartels that wanders on and off the subject of problem management (that is how it started), but it is best described by Ray who says this is Daddy's thoughts! Like the best music is from the Eighties and a wee dram helps in solving most inconveniences.
The HP41C as a prototype for an IoT device
When my brother André Bartels went to university at Maties, he arrived back with an HP41C
calculator. It was programmable and I was hooked. In my first year at
university I also bough myself one, a 41CV. The best thing about the
calculator was its programming language called FOCAL.
It allowed the creation of some decent apps. The one I recall the best
was a fuel management programme that was similar to the fuel stats now
displayed by the digital dashboards on most modern cars. In those days I
had a Toyota Corolla and would drive long distances between
Stellenbosch in the Western Cape and Howick in Kwazulu-Natal. I would
have all my fuel statistics on the HP41CV.