Hi Bill & everyone reading this thread:
Bill posted:
"I have found the 32sii to be nearly as logical -- though the menus sometimes still give me consternation [ ... ] I really like the 48G for its list operations [...] and the menus there *really* consternate"
That's the problem: I do not want to be *consternated* by my chosen calculator, but *awed*, delighted. Nothing in the HP-15C causes
consternation. On the contrary, you feel awed by how everything fits and how complete the instruction set is, by the lack of arbitrary restrictions and senseless nuisances imposed not by any sound engineering principles but for the sake of questionable marketing ideas and cost reductions.
"I am very curious about your thoughts on the design and effectiveness of two other calculators---in fact the ones that, I suppose, inherited the 15c market position: the 42s and the 48 series. What are your thoughts?"
Well, answering questions like yours is bound to upset a number of people if they happen to disagree with my views about their beloved calculators, but keeping in mind that this is just my own, personal, humble opinion and I make no pretense to be the one who is right, here it is:
Reusing the formerly expressed concept, I find that both models, the 42S and the 48 series do consternate me. Big time.
Take for instance the 42S. It could have been a terrific, worthy successor for the 41CX. It has nearly full compatibility and lots of well-conceived extensions. But then lightning did strike and we were left with much cause for consternation, both minor and major. Among the minor, the dreadful menus, most noticeably the alpha menu, forcing you to press several keystrokes for a single alpha character in a machine that so badly needs to have a quick way of spelling function names to avoid navigating menus all the time.
Among the major, the fact that it has relatively large RAM (7Kb/32 Kb) but no I/O is a BIG consternation, if there ever was one. It's such a letdown as to render the machine unsuitable for most of the uses the HP-41C was put to. With my 41CX, I had lots of card holders, and felt comfortable with the thought that I could load any of those wonderful programs in the machine in seconds. No fast changing of batteries. No dread of memory lost when playing with synthetics. No problem erasing a 1,000 line Othello program in order to fit something new, I could reload it most easily. All that is lost with the 42S, and that does consternate me. Also, the fact that its internals uselessly mimic 41CX codes makes it far slower than it should, and it's maddening to know that it's a completely pointless degradation, as there's no use in mimicking internal 41C codes if there's no way to load a 41C program recorded on cards, tapes, disks, or some other mass storage devices.
So, the 42S is useless to me. For use as a calculator, I still feel the HP-15C can easily hold against it. For use as a 'program runner', I'll never feel confident painfully keying in a large program or programs, to see them turn into thin air when changing batteries or for some other reason, or having to remove them to make room for data or other programs, at the cost of having to key them again. This is not an issue for 448 bytes of RAM, but certainly is for 7,000 or 32,768 bytes for that matter.
And as far as specifications and features go, if I ever need more pocketable computing power than my HP-15C has, I never resort to the HP42S, but to my trusty HP-71C, which together with its 160 Kb RAM, Math ROM, and Forth/Assembler ROM can run rings around anything the 42S can offer in terms of functionality, programmability and ergonomics, not to mention I/O.
As for the 48/49 series, there the consternation reaches epic proportions, but as this message is already way too long, I'll leave that for another suitable occasion. Let me
say just one thing: the 48 series is RPN/RPL's "Peter's Principle" come true. Nuff said ! :-)
Best regards.
Edited: 4 June 2003, 7:28 a.m.