The Texas Instruments TI-83 Graphing Calculator is a handheld device powered by batteries, featuring a regular-sized display and key size. This graphing calculator is designed for office and business use, making it a reliable tool for solving equations and analyzing data. The model, Texas Instruments TI-83, is known for its functionality and durability, making it a popular choice among professionals and students who require precise calculations and graphing capabilities. Additionally, it comes with a slip cover for added protection and convenience.