Texas Instruments TI-84 Plus Graphing Calculator 8 Line(s) - 16 Character(s) - Battery Powered - Black, 1 Each Type: Calculators & Accessories Color: Blue Specifications: 8-line by 16-character display Powered by 4 AAA batteries with a lithium battery backup to protect RAM memory during main battery change Impact-resistant slide case TI Connectivity Cable included 480 KB ROM memory for data archive and storage of Apps 24KB of available RAM memory |