(24 KB RAM and 480 KB of Flash ROM), an enhanced high-contrast display (eight lines by 16 characters), and more Apps. USB Port. No cable. Can be used to share files with other calculators or to connect to PCs or optional presentation tools. Comes with 12 pre-loaded Apps and supports all TI-83 Apps. Twelve Apps are pre-loaded, including Cabri Jr., CBL/CBR, Conic Graphing, Inequality Graphing, Probability Simulations, Science Tools, StudyCards, TimeSpan, Topics in Algebra 1 Chapter 5, Topics in Algebra 1 Chapters 1-4, Transformation Graphing, and more. Powerful, problem-solving tool with features for storing, graphing, and analyzing up to 10 functions. Plus, it displays graphs and evaluates tables on a split screen, allowing you to trace the graph and scroll through table values simultaneously. Split screen lets you view a graph and its equation at the same time. With the TI-84 Plus, you can view an equation, its graph, and the coordinates all at one time. With its clear display and fast processing, the calculator incorporates graphing tools for mathematics and science course work, including statistics and finance. The included normal slide case is great for desktop work. The TI-84 Plus is powered by four AAA alkaline batteries (included) and one silver oxide battery (not included) for backup, with an automatic shutoff to save energy.