Texas Instruments TI-84 Plus Graphing Calculator, Black

Brand: Texas InstrumentsColor: BlackFeatures: All-purpose graphing: pre-algebra, algebra 1, 2, geometry statistics, biology, physics, business and finance Preloaded apps, 480 KB ROM, 24 KB RAM Function visualization, 96 x 64 display resolution Proactive case and USB cable included Details: Amazon.com Amazon.com Product Description Building on the hugely popular TI-83 Plus, which is perhaps the best-selling calculator of all time, the TI-84 Plus is completely compatible with its predecessor. From that well-established platform, this new model adds more speed (a processor that's 2.5 times faster), more memory (24 KB RAM and 480 KB of Flash ROM), an enhanced high-contrast display (eight lines by 16 characters), and more beloved Apps. Includes a USB Port and cable. It also adds USB on-the-go technology (cable included) that 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. Twel