The Texas Instruments TI-83 Plus Graphing Calculator is a handheld device powered by batteries, featuring a regular-sized display and key size. As part of the graphing calculator series from Texas Instruments, the TI-83 Plus model is designed for office and educational use. With its advanced capabilities for solving equations and graphing functions, this calculator is a reliable tool for students and professionals alike. Its compact size and user-friendly interface make it a versatile option for business and industrial applications.