The OEM Texas Instruments TI-84 PLUS Graphic Calculator is permitted for use on SAT, PSAT/NMSQT, ACT, AP, IB, and Praxis exams. It features an 8-line x 16-digit display, 480K of Flash memory, and 24K of RAM, along with an internal clock. The calculator can graph 3 recursively-defined sequences and includes a TI connectivity cable and built-in USB port. Preloaded applications in Algebra 1, Vernier EasyData, and more enhance its functionality. It is powered by 4 AAA batteries and includes a Silver Oxide battery to protect RAM.