The Texas Instruments TI-84 Plus Graphing Calculator Silver Edition is a handheld device designed for both financial and graphing functionality. It features a regular size LCD display, powered by batteries, and includes USB connectivity for easy data transfer. With calculus capabilities and programmable features, this unit is a versatile tool for various office and educational tasks. Made by Texas Instruments in China, this graphing calculator is a reliable and efficient tool for solving complex mathematical problems.