circa 1980 Casio with clock, similar to fx-8100
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12-13-2018, 05:57 AM
Post: #21
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RE: circa 1980 Casio with clock, similar to fx-8100
CASIO Calculators Database (1957-1989)
Wow thanks Didier... that is a superb resource! HP-28S (1988 US model), DM41X (2020) |
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12-13-2018, 12:11 PM
Post: #22
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RE: circa 1980 Casio with clock, similar to fx-8100
(12-12-2018 06:17 PM)grsbanks Wrote: NB: that trick doesn't work unless every year in the interval that's a multiple of 4 is a leap year. Yes, the 28 years cycle will be disturbed in 2100, so we have to correct the calculators date from 1988 to 1976 on monday the 3-1-2100. Calculator Benchmark |
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12-13-2018, 12:14 PM
Post: #23
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RE: circa 1980 Casio with clock, similar to fx-8100
(12-12-2018 07:22 PM)edryer Wrote: Interesting I didn't know about those models. Really is a pity there isn't (I don't think) a comprehensive list of Casio Calculators by date. Not sorted by date, but an excellent site: http://casio.ledudu.com/pockets.asp?lg=eng&serie=100 Calculator Benchmark |
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12-13-2018, 07:20 PM
Post: #24
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RE: circa 1980 Casio with clock, similar to fx-8100
(12-12-2018 10:06 PM)burkhard Wrote: Casio had their "Melody" series (ML-80, ML-81, ML-75, maybe more) which combined a clock with Thanks; yes, I looked at those, and also the game ones, which were superficially similar, but they didn't ring a bell either. As 15-ish-year-olds doing Maths 'O'-Level [actually, -Grade in Scotland, i.e. GCSE] we'd definitely have needed scientific calculators, and I doubt we had money for two ![]() (12-13-2018 04:28 AM)Joe Horn Wrote: Both models are time only. So they don't have the Y2K bug. Ah! I'm thinking that I must be referring to the fx-8100, but I seem to remember both a taller screen, and a physical switch for time/calc, neither of which that (or any other Casio I've seen) has. Ah well. thanks to all… Cambridge, UK 41CL/DM41X 12/15C/16C DM15/16 17B/II/II+ 28S 42S/DM42 32SII 48GX 50g 35s WP34S PrimeG2 WP43S/pilot Casio, Rockwell 18R |
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12-13-2018, 08:46 PM
Post: #25
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RE: circa 1980 Casio with clock, similar to fx-8100
(12-13-2018 07:20 PM)cdmackay Wrote: I'm thinking that I must be referring to the fx-8100, but I seem to remember both a taller screen, and a physical switch for time/calc, neither of which that (or any other Casio I've seen) has. Ah well. Your description remaids me of the EL-410 from 1981, but it's neither CASIO nor scientific. ![]() ![]() Pictures from epocalc Calculator Benchmark |
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12-13-2018, 11:33 PM
Post: #26
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RE: circa 1980 Casio with clock, similar to fx-8100
(12-13-2018 08:46 PM)xerxes Wrote: Your description remaids me of the EL-410 from 1981, but it's neither CASIO nor scientific. thanks, yes I had spotted that one myself — meant to mention it — and wondered. I can't remember (!) if the one I'm talking about was mine, or a friend's which I coveted. If the former, it would have to have been a Casio and scientific. If a friend's it might just have been the Sharp, perhaps. If it was mine, I will find it one day and report ![]() Cambridge, UK 41CL/DM41X 12/15C/16C DM15/16 17B/II/II+ 28S 42S/DM42 32SII 48GX 50g 35s WP34S PrimeG2 WP43S/pilot Casio, Rockwell 18R |
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12-14-2018, 09:28 PM
Post: #27
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RE: circa 1980 Casio with clock, similar to fx-8100
My Casio ML-81 has been my morning alarm clock since I was given it in 1981, replacing my Toshiba LC-854WA. Still works great, though the vinyl folding cover failed and was lost many years ago. The keyboard and dedicated buttons make setting an alarm time easier than any other alarm I've ever used. It's thin enough to stay under my pillow where it's alarm is enough for me without waking anyone else. And you can change an alarm to any desired time by feel in the dark.
Back then, the credit card calculators from Casio and many others were very appealing. Friends and I were on the lookout for one with what you ask - scientific functions, time and alarms. I never did find any that did all that. |
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12-14-2018, 11:35 PM
Post: #28
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RE: circa 1980 Casio with clock, similar to fx-8100
nice Jim, thanks.
Perhaps I am imagining it all ![]() Cambridge, UK 41CL/DM41X 12/15C/16C DM15/16 17B/II/II+ 28S 42S/DM42 32SII 48GX 50g 35s WP34S PrimeG2 WP43S/pilot Casio, Rockwell 18R |
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06-01-2019, 02:07 PM
Post: #29
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RE: circa 1980 Casio with clock, similar to fx-8100
hi all, thanks again for all the comments.
I managed to find an as-new 8100 on TAS, and it's great. Of course, having looked at it, I now can't really remember whether it was the one from my schooldays, but it's very close ![]() And the year adjustment works perfectly, party like it's 1991! thanks again. (12-08-2018 09:51 PM)cdmackay Wrote: I'll see if I can pick up an 8100 (12-12-2018 11:24 AM)xerxes Wrote:(12-11-2018 06:12 PM)cdmackay Wrote: I read that the FX-[678][01]00 series can't cope with dates > 1999. Cambridge, UK 41CL/DM41X 12/15C/16C DM15/16 17B/II/II+ 28S 42S/DM42 32SII 48GX 50g 35s WP34S PrimeG2 WP43S/pilot Casio, Rockwell 18R |
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