to 255 were user defined. They could be defined by issuing the command DEF CHR$(n)="HHHHHHHHHH" where n ranges from 252 to 255 and the H's are 10 hexadecimal digits (5 bytes). Every byte defines the pixel pattern for a column. Since a column is 7 pixels high, the least significant bit of every byte is ignored. The CHR$(26) would activate a different character set for Katakana and Kanji characters. CHR$(27) would deactivate Kanji. Via a serial cable the calculator could connect to a PC or to another Casio FX-850P, allowing the transfer to MEMO and stored programs. See also Casio calculator character sets References External links Casio FX-850P on MyCalcDB Database of 1970s and 1980s pocket calculators FX-850P Pocket computers Products introduced in 1987