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Questions about Casio Cassiopeia A50/A51/A51V/A55/A55V/A60

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hpcboy Page Icon Posted 2020-10-21 5:16 AM
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These earliest Casio HPC models are very rare and information is very limited.

Q1: I learned that A51(V) (CE 1.0) can be upgraded to CE2.0 (= A55?). How can this be done?
Is it like swapping the memory board to upgrade Jornada 720 to 728?

Q2: And how are their specs? They seem highly similar but I have yet to track down the details.
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stingraze Page Icon Posted 2020-10-21 5:32 AM
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The ROM will be updated.

According to this old website, you had to take it in to the Casio Techno Service Station.

https://pc.watch.impress.co.jp/docs/article/980608/casio.htm

I think all you need is swap the ROM board if I'm not mistaken, but I guess that will be rare...
It cost 20,000 JPY for this service back then.

Edited by stingraze 2020-10-21 5:32 AM
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stingraze Page Icon Posted 2020-10-21 9:08 AM
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Here's the spec of A-55V:

https://pc.watch.impress.co.jp/docs/article/980414/casio.htm

CPU SH-3 80MHz
Memory: ROM 24MB?RAM 8MB
Display: EL backlight FSTN ?480×240dots? 4scale-grayscale
Interface: RS-232C Casio 3pin serial PCMCIA TypeII×1 Compact Flash×1 IrDA
Width 185mm×Depth 94mm×Height 24.5mm
Power: AA batteries x 2 or Li-Ion battery
Weight: 390g(Including AA batteries) about 370g(Including Li-Ion Battery)

Edited by stingraze 2020-10-21 9:08 AM
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hpcboy Page Icon Posted 2020-10-21 12:39 PM
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Just saw this old Japanese auction record which contains a concise summary:

???(PDA????????)
WindowsCE???????(Cassiopeia)????HandheldPC??????A?????PalmSizePC??????E??????????
????H/PC??????? A-10/A-11 ?? A-20(WinCE2.0?8MB????CPU)????????????????? A-50/A-51/A-51V ???? A-55V(WinCE2.0J?8MB????CPU???480x240pixel)?A-60(WinCE2.0J?8MB????CPU???640x240pixel)???????????????

From Google Translate:
* * * (4th PDA-related exhibition) The Windows CE version of Casiopea has an A series equipped with this Handheld PC version and an E series equipped with the Palm Size PC version. Casio's H / PC has been discontinued in the United States after the A-10 / A-11 with the A-20 (WinCE2.0, 8MB, double speed CPU). In Japan, A-50 / A-51 / A-51V followed by A-55V (WinCE2.0J, 8MB, double speed CPU, screen 480x240pixel), A-60 (WinCE2.0J, 8MB, double speed CPU, screen 640x240pixel) ) Has been released and this has also ended.



Edited by hpcboy 2020-10-21 12:40 PM
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hpcboy Page Icon Posted 2020-10-22 2:13 AM
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The numbering of the Casio Cassiopeia look confusing. The A2x series (sold in the US) seems to have even higher specs (more RAM, CE 2.0) than the A50/51 (sold in Japan, less RAM, CE 1.0).

Even though the quote in my previous post says the A20 has 8MB RAM, other sources including the specs database here says 16MB.

It would be nice if there is a table showing the accurate specs of all these Cassiopeia models...
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