When was the TI-83 released?
TI-83 series
The TI-83 series is a series of graphing calculators manufactured by Texas Instruments.
The original TI-83 is itself an upgraded version of the TI-82. Released in 1996, it was one of the most popular graphing calculators for students. In addition to the functions present on normal scientific calculators, the TI-83 includes many features, including function graphing, polar/parametric/sequence graphing modes, statistics, trigonometric, and algebraic functions, along with many useful applications. Although it does not include as many calculus functions, applications (for the TI-83 Plus—see below) and programs can be downloaded from certain websites, or written on the calculator.
TI-95
The TI-95, also called the TI-95 Procalc, is a keystroke programmable calculator and was introduced in 1987 by Texas Instruments. It was rather large, measuring 3.7" by 8" by 1" and had a dot-matrix display. It had 8kB of RAM and could be connected to PC-324 compatible printers. Compatible ROM and extra RAM could be placed in the expansion slot at the upper right corner of the device. The compatible ROM were labeled Mathematics, Statistics, and Chemistry, indicating their respective applications.