graphing calculator Texas Instruments brand TI-83 Plus (C) 1999 untested

graphing calculator Texas Instruments brand TI-83 Plus (C) 1999 untested untested graphing calculator designed for math and science, for graphing statistics, trigonometry and algebraic functions takes (4) AAA batteries - also appears that it takes a couple button style batteries battery compartment is clean (C) 1999, Made in China for Texas Instruments has port for AC adapter - adapter is NOT included measures approximately 7 1/4" x 3 1/2" x 1" calculator has been UNTESTED - FUNCTIONALITY is UNKNOWN - could at least be used for part, refurbishment or repairs ---- or, it may function fine --- this is UNKNOWN appears to be in good condition but has been untested (I don't know how to use a graphing calculator in order to test) - dated 1999 - battery compartment clean - please see photographs Bfoot Chard Box 2