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jlw · 03-10-2021, 07:14 PM

Which calculator is this? While this photo is blurry, the model number on the front has three characters... It's not an HP-97. Found on facebook.

My first post here; I hope the photo shows up as an attachment. Otherwise, I have an ugly URL for it.

**Gene** · 03-10-2021, 07:29 PM

It is an HP-95C, never released. In fact, recalled and destroyed. Only a few exist in real life.

Turns out that a picture of one had been in the HP-92 manual all along.

teenix · 03-10-2021, 08:39 PM

There is a simulator for the HP-95C here...

http://www.teenix.org

cheers

Tony

jlw · 03-11-2021, 02:50 AM

(03-10-2021 07:29 PM)Gene Wrote: It is an HP-95C, never released. In fact, recalled and destroyed. Only a few exist in real life.

Turns out that a picture of one had been in the HP-92 manual all along.

Indeed, pages 102-103 where printer maintenance is shown.

The calculator in the picture I posted isn't an HP-92 either, due to having only three slide switches on the keyboard. The 92 has four.

Eric Rechlin · 03-11-2021, 03:56 AM

600 dpi scan of it here, page 20 of the HP-95C manual:

[Image: pjZkDie.jpg]

PeterP · 03-11-2021, 03:19 PM

(03-10-2021 07:29 PM)Gene Wrote: It is an HP-95C, never released. In fact, recalled and destroyed. Only a few exist in real life.

Turns out that a picture of one had been in the HP-92 manual all along.

Why was it recalled?

Ren · 03-11-2021, 04:06 PM

Just wondering,
Are those seismograph recorders in the background?

**rprosperi** · 03-11-2021, 04:45 PM

(03-11-2021 03:19 PM)PeterP Wrote: Why was it recalled?

Units were never sold, but some units had been released to the usual suspects under NDA (PPC folks, reviewers, well-known academics, etc.) for review, feedback and comment, in preparation for launch. Although well-received, the story is that HP concluded somehow it would cut too deeply into HP-97 (a pricier model, likely with a better margin) sales and so decided to cancel the project. As usual for those circumstances, HP asked that all review models out for evaluation be returned, likely in accordance with terms in the NDA/reviewer agreement, and while most were returned and reportedly destroyed, a few were not, and so survive today.

**Gene** · 03-11-2021, 05:20 PM

Originally intended (so I have heard) as an HP-25C with a printer, the designers beefed it up beyond that with separate program spaces and better programming.

Made it a bit closer to the HP-97 (as Bob suggested) which may have contributed to its demise.

Gene

Thomas Okken · 03-11-2021, 06:20 PM

That sounds too close to the HP-19C as well. They must have concluded that their product palette would get too crowded. I'd say they did the right thing, there really doesn't seem to be much of a point in having something between the 19C and the 97.

HP-Collection · (This post was last modified: 03-11-2021 07:57 PM by HP-Collection.)

Looks like this Wink

In contrast to the calculator from hpmuseum this calculator has a different board designation.

Gamo · (This post was last modified: 03-15-2021 10:30 AM by Gamo.)

์Noticed that the HP-95C got some funtions that other programmable calculator doesn't have.

The only one that I noticed is the [JUMP] key according to the manual stated that this key

is use for jumping to "numeric lable" under each of the main lable in between LBL A to D

So I'm wondering that if LBL A and LBL B each have same numeric lable is this possible to jumpt to specific lable when needed.

Example:
*LBL A
STO 1
LBL 0 <-----
STO 2
RTN
*LBL B
STO 3
LBL 0 <-----
STO 4
RTN
*LBL C
JUMP A 0 // Goto program A and jump to LBL 0
*LBL D
JUMP B 0 // Goto program B and jump to LBL 0

Gamo

[kby] · 03-12-2021, 01:57 AM

Sure look like it to me. I went to Caltech as an undergrad and many years later was a sysadmin for GPS (Division of Geology and Planetary Science) there as well. But I don’t recognize the face nor know anything about the picture.-kby

(03-11-2021 04:06 PM)Ren Wrote: Just wondering,
Are those seismograph recorders in the background?

BruceH · 03-14-2021, 08:14 AM

(03-11-2021 04:06 PM)Ren Wrote: Just wondering,
Are those seismograph recorders in the background?

They certainly look like it. The 95C must have had an extremely heavy keypress if it needed a seismograph to measure it. :-)

BobVA · 03-14-2021, 02:43 PM

(03-12-2021 01:26 AM)Gamo Wrote: ...So I'm wondering that if LBL A and LBL B each have same numeric lable is this possible to jumpt to specific lable when needed.

That's how I read it. It's effectively a "GTO" to a specific label in the target program, so it doesn't matter if that label is present in the current, or other programs.
Execution will halt when it reaches a RTN, or the end of the the target program. (Note that if the same label is used multiple times in the target program, JUMP selects the first one.)

Thanks for the question - I hadn't read the 95C manual, (or noticed the 95C!) and it was interesting.