Released by Texas Instruments in 1981 as a cartridge for the TI99/4, this extension to its original BASIC brought new commands and changed functionality of some already implemented ones.
Where it is/was used
TI 99/4, TI 99/4A
Noteworthy characteristics
With the extension, TI-BASIC could use more than one statement per program line, and also in direct mode.
A REDO functionality was implemented to a function key
IF could do more than branching after THEN, and ELSE was implemented