Just my first hello to the forum

[Chr Yoko]

Hello, me too new to that forum too.

Same as for you during the "house arrest" times and after repairing everything possible , doing all maintenance possible on all my Mountain Bikes, including hydraulics and bleeding brakes, i got to a box in the building's "cave" and found my old 28C from 1986-87 that i bought new with my hard won pocket money back in the time.

2653A serial number, so made in the USA !

As student in Paris, the 28C did not helped me much in my studies, since it was pretty slow for algebraic calculations and i was quicker by hand&mind, back then ... it had to be too because of the blackboard live-tests we had at the time, no calculator allowed.
It was a great machine and very high tech with its large screen and symbolic modes.
But i did not used it from mid 1990s as i started to work as a mechanical engineer in the automotive industry.

Sadly, almost nobody is using anymore scientific calculators since heavy calculations are done onto powerfull PCs sometimes even laptops are good enough nowadays. And for small calculations and quick estimations, Excel is the tool of choice. These , i may want to carry them to a calculator just for the fun of it , will see.

Of course the original docs of the 28C are lost or somewhere 750km down to the south with no way to get theire anytime soon... So i got some scans from HPMuseum and there i was about 2 weeks ago.

The 28C hinges were terrible noisy and of course as a mechanical guy, i had to fix these with some proper oil, and the 28C is now smooth to open again like new. Keyboard quality and feel is just fantastic. Don't think any manufacturer ever managed to reach such level since then.
HP Keyboards are a piece of mechanical art.
Got a set of 10 of the special batteries too (thanks you Amazon !).

After playing a bit with my 28C, i started to look for HP stuff on used market, and got, not far from home a 48G for 30€ with its docs and (dirty) pouch. Playing with it right now.
So i am back to a quick learning curve of their functions and restarting RPL langage.
To be honest, these machines seem very slow now vs modern standards, especialy when you want to use some of their advanced features.
I had the same feeling back in the 80s, but it did get worse over time.

Since the kids had and, for the last one, have only Tis for school purpose (all friends having Tis they MUST have the same stuff, you know ...), so i also ordered a brand new fast HP-Prime G2 by curiosity and to play with. PPL langage looks a kind of basic that should reminds me of my 1980s programming period on TRS80, VIC20, AmstradsCPCs....will see it next week.

Contemplating now to get maybe some of the SwissMicro machine and its modern and fast hardware sometime in the future ...