28 Aug
2000
28 Aug
'00
1:34 a.m.
The 86's and 89's and 92's ( I think the 92 may also have a Z80, though) are
powerd by a cmos version of the Motorolla 68000, the same processor as the
68k Macs. The 82, 83 and 85 are powered by Z80's. HP48g's use a processor
called the Saturn that was made for the calc, which I think is far superior
to the TI Calcs. The HP48gx has a card slot to upgrade the ram, add
functions, printers, etc. It also has an IR port.
28 Aug
28 Aug
5:54 a.m.
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11:29 a.m.
Tony Duell <ard(a)p850ug1.demon.co.uk> wrote:
The saturn was used in just about all HP handheld
calculators since the
HP71B. It's gone through several revisions over the years, and later
versions (as used in the 48 and 49) have instructions that are not used
by the original version used in the 71.
I believe that it is not used in the HP 6S (either version) or 30S.
It appears that these models are OEM'd by HP from another vendor,
although HP won't comment on it.
Incidentally, the CPU in the Thinkjet printer also
seems to be a Saturn.
It's a 48 pin package containing the CPU, I/O ports, some of the ROM
(there's an external ROM and RAM hooked up to it), and an HPIL interface.
I don't think it's a Saturn. ISTR that the Thinkjet uses the same 8-bit
CPU core that's buried in the 71B HP-IL module, and several other HP
devices from the same timeframe. There's very little information
available about it.
11:43 a.m.
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8882
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swolfe1＠mail.gcnet.net