The Texas Instruments TI-83 Plus Graphing Calculator in black is a handheld device that runs on batteries, making it convenient for use on-the-go. With a regular display size, this calculator allows for easy viewing of mathematical equations and graphs. The model is designed specifically for graphing, making it ideal for students and professionals alike. Made by Texas Instruments in China, this calculator is a reliable tool for solving complex mathematical problems and creating visual representations of data.