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Casio's and Complex Numbers
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11-24-2018, 01:05 AM
(This post was last modified: 11-24-2018 02:06 AM by edryer.)
Post: #5
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RE: Casio's and Complex Numbers
1979-1980 "FX80 College" (Yellow LCD)
1980-1989 FX81 1989-1991 FX82 (the original, nothing after the model number) 1998 fx-82W, 85W 2001 fx-82MS, 83MS, 85MS 2004 fx-82ES, 83GT, 85ES 2008 fx-82ES plus, 83GT plus, 85ES They came (esp. the FX82) I think in different variants. You can even buy FX82 variants today. This is from memory so could be off. The yellow I am remarking on was the LCD screen cover, which like the FX501/502P was "yellow" and was some sort of filter to protect early LCD compounds I believe... they were only around till about 1980.... they were also used on the early LCD watches (like the Seiko ones from 1976). I think only the first three Casio LCD Calculators (501P/502P/FX80) had this "filter". You are right FX81 was white, was by far the most common calculator in UK Schools around 1980-1990 !! HP-28S (1988 US model), DM41X (2020) |
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| Messages In This Thread |
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Casio's and Complex Numbers - edryer - 11-22-2018, 10:48 PM
RE: Casio's and Complex Numbers - xerxes - 11-23-2018, 11:59 AM
RE: Casio's and Complex Numbers - edryer - 11-23-2018, 09:24 PM
RE: Casio's and Complex Numbers - cdmackay - 11-23-2018, 11:40 PM
RE: Casio's and Complex Numbers - edryer - 11-24-2018 01:05 AM
RE: Casio's and Complex Numbers - cdmackay - 11-24-2018, 12:27 PM
RE: Casio's and Complex Numbers - cdmackay - 11-24-2018, 12:47 PM
RE: Casio's and Complex Numbers - ijabbott - 11-24-2018, 03:28 PM
RE: Casio's and Complex Numbers - xerxes - 11-24-2018, 10:20 AM
RE: Casio's and Complex Numbers - edryer - 11-24-2018, 08:11 PM
RE: Casio's and Complex Numbers - david sanz - 12-17-2018, 01:13 PM
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