hidden directory - hp 28s

[Dave Britten]

(06-07-2015 03:57 AM)Jake Schwartz Wrote:  

(06-05-2015 10:55 PM)Raymond Del Tondo Wrote:  Various general RPL mechanics can be found in earlier machines like the 28C/S or the 17B or the 42S, but the HP 48S series were the first to feature (nearly) the full range of object types, covered memory management, and much more.

Best Regards

I'd love to know about any relationship to RPL in the 42S, since it was classic RPN. Yeah, I'm sure it has a Saturn processor, but I don't remember every hearing "RPL" and the 42S in the same sentence.

Jake

I was wondering about that recently. Seeing as the 18C introduced RPL, at least for internal system programming, and the 17B likely used it as well, what about the 42S? I kind of doubt it to be honest, but you never know.

As for the original question, since the 28C lacks directories entirely (and for that matter, RAM), and gets on fine* without the presence of a hidden directory, I'd assume the 28S doesn't have one.

(*As long as you're not trying to actually program the thing. It's so starved for memory that the command line parser usually doesn't have enough room to work if you've got a stored program of any substance, making it impossible to actually edit the program.)