Battery
Tools
These are some common tools used to work on this device. You might not need every tool for every procedure.
Background and Identification
Texas Instruments is a global technology company based in Dallas, TX that designs and manufactures numerous electronics. In 1967, they invented the first electronic handheld calculator, the Cal-Tech, which performed basic math functions. The first calculator released for the retail market was the TI-2500 Datamath in 1972. Their first scientific calculator, the TI SR-50, followed shortly after that in 1974. According to the official site, the TI SR-50 had many functions including trigonometric, hyperbolic and logarithms and their inverses.
In 1990 their first graphing calculator was released, the TI-81. This could be used for Algebra and Precalculus. In 1998, Texas Instruments integrated flash technology into their calculators, specifically the TI-73 and TI-89 devices. In 2001, the TI-83 was released so students could graph and compare functions and perform data plotting and analysis. According to the official site, a few years later, they came up with a major design upgrade with the TI-NSPIRE, which allowed students to display multiple representations on a single screen, explore cause and effect and save work. In 2007, they developed color graphing calculators called the TI-Nspire CX and TI-Nspire CX CAS. They both have the ability to import images and create graphs in 3D. In 2019, they released the TI-Nspire CX family of calculators, which have some updated functions from the previous version.
TI calculators generally fall into two distinct groups, those powered by Zilog Z80 and those powered by the Motorola 68000 CPU. The TI-Nspire, TI-Nspire CX, TI-Nspire CX CAS, TI-Nspire CX II and TI-Nspire CX II CAS, have a ARM9 CPU.