TI calculator character sets
As part of the design process, Texas Instruments decided to modify the base Latin-1 character set for use with its calculator interface. By adding symbols to the character set, it was possible to reduce design complexity as much more complex parsing would have to have been used otherwise.TI-86
The 68k calculators use a character set similar to Latin-1 except that most of the control characters are replaced with mathematical symbols or Greek letters. All characters are printable except the null character.
