Adriweb: same as http://www.datamath.org/Sci/Modern/FIA.htm : TC54256
CVSoft: http://datamath.org/Personal/Organizer.htm : look at the IC list, that thing is basically a TI-81 with different memory
TI-81 Hardware and ROM Versions
Re: TI-81 Hardware and ROM Versions
de Adriweb » 01 Déc 2015, 12:22
By the way, about that chip :
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TI-81 Hardware :: Oddities
de CVSoft » 15 Fév 2016, 10:42
One of the last 'B' TI-81s, I-0493B with 1.8K, using the new style housing! Not only does this prove housing style is not related to hardware revision, but it also shows the 6th variant display bezel came before 5th.
Anyone know what 'VB' represents? Externally this is identical to a standard 6th variant TI-81. Unfortunately I am unable to acquire this calculator.
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