📈 Elevate Your Calculations with the TI-89 Titanium! Compact dimensions and lightweight design make it perfect for on-the-go professionals. 188 KB of RAM ensures smooth multitasking for complex calculations. With 2.7 MB ROM, store all your essential apps and data effortlessly. Equipped with software for algebra, calculus, and differential equations. USB port allows seamless communication with other TI-89 Titanium calculators. 2.7 MB ROM USB connectivity 188 KB RAM The Texas Instruments TI-89 Titanium Graphing Calculator is a powerful tool designed for college mathematics and engineering coursework, featuring 2.7 MB ROM for data storage, 188 KB RAM for efficient performance, and advanced software capabilities for symbolic manipulation. Its compact design and USB connectivity make it an essential companion for students and professionals alike.