New finds: HP9825 etc.

From: Joe <rigdonj_at_intellistar.net>
Date: Sat Aug 5 12:11:31 2000

At 11:44 PM 8/3/00 -0400, you wrote:
>On 2000/08/03 at 8:08am -0500, you wrote:
>> Yes, the interfaces are the same but the ROMs are very different. Do
>>you have a 9845?
>
>Yes, and by coincidence it has exactly the interfaces and peripherals
>corresponding to the 9825's ROMs.

    That is odd. What model 9845 do you have? I have several Bs and I'm
looking for a C (color) model.
>
>>Does the 9825 have the
>>pull-out system ROM in the side or only a slotted cover? If it has the ROM
>>then it's a 9825 A, if it has the slotted cover then it's a B model.
>
>It does have the side ROM drawer (and is marked 9825A), though it has the
>full-travel keyboard (which IMHO is *horrible* -- nothing like the
>contactless keys on the 9845).

    You should be glad that your didn't get the original chicklet keyboard!
Your's probably had it originally but it was probably replaced sometime.
AFIK ALL A models came with the chicklet keyboards but a lot of them were
replaced with full travel keyboards. The HP designers were proud of the
chicklet keyboard but it seems that all the users hated it.

>
>>>Also got a 6800 evaluation board, MEK6800D2, with hex keypad & LED display.
>>
>> That's cool. The 6800 evaluation boards are rare. That module is
>>described in Motorola's MicroProcesor Applications Manual for the 6800. I
>>HIGHLY recommend that book if you're interested in the 6800s.
>
>I don't have that book. While I'm not especially interested in
>microprocessors generally, these little boards remind me of the first
>machine I owned myself -- although at 512 bytes, this one has *twice* as
>much memory. *Luxury*!

    If you're not too attached to it, I'd like to have it. I have a
collection of 6800 stuff. That's the CPU that's used in my Tektronix 4051
and in the old Heathkit trainer that I have.

    Joe

>
>--
>Kevin Schoedel
>schoedel_at_kw.igs.net
>
Received on Sat Aug 05 2000 - 12:11:31 BST