Texas Instruments TI - 86 Graphing Calculator
> A new aspect of the TI-86 is the ability to customize product functionality with machine language programs downloaded from TI's Web site.
> Besides the strong graphing abilities, the TI-86 also has powerful calculus features like integration, derivatives, minimums, maximums, roots, and arcs.
> It also supports Z80 assembly language programming.
> The 64 x 128 high-contrast pixel screen displays eight lines of 21 characters each plus two levels of display menus.
> With the TI-86, you can link to other TI-86s and TI-85s via the input/output port, and to CBLs, CBRs, and computers.