Programming Your TI

Before we start, my first piece of advice is to:
Find your calculator manual!

Standard programming language for the TI calculator is a variation of the old BASIC programming language
Calculators from the same model family (82/83(+), 85/86, or 89/92(+)) use the same commands and file format, though the newer calculator in each family has some commands that the older calculator won't recognize.
All Basic programs are transferable, but the older calculator in the family will error with programs using commands that only the newer calculator has.