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.[1] 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.
Bell XP-83
Early wind tunnel reports had pinpointed directional instability but the "fix" of a larger tail would not be ready in time for flight testing. The first prototype was flown on 25 February 1945, by Bell's chief test pilot Jack Woolams, who found it to be underpowered and unstable. The limited flight testing provided satisfactory flight characteristics although spins were restricted until the larger tailfin was installed. The second prototype did incorporate the extended tail and an aileron boost system. One unique characteristic was the XP-83's refusal to "slow down" due to its sleek aerodynamic shape and lack of drag brakes; test pilots were forced to fly very long and flat landing approaches.