https://archive.org/details/ti82-calculator

It takes a moment to load, but it works fine for me.

Click the ON button in the lower-left corner.

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The TI-82 is a graphing calculator made by Texas Instruments. The TI-82
was designed in 1993 as a stripped down, more user friendly version of
the TI-85, and as a replacement for the TI-81. It was the direct
predecessor of the TI-83. It shares with the TI-85 a 6 MHz Zilog Z80
microprocessor. Like the TI-81, the TI-82 features a 96x64 pixel
display, and the core feature set of the TI-81 with many new features.

The TI-82 is powered by the same processor that powered its cousin, the
TI-85, a 6 MHz Zilog Z80 microprocessor. This was an improvement over
the TI-81's 2 MHz Z80 processor. In addition, the available RAM was
increased more than tenfold – from 2400 bytes to 28734 bytes (slightly
more than the TI-85).

Some of the more notable improvements of the TI-82 over the TI-81
include the following: the addition of a link port to enable programs
and other data to be transferred between two calculators or between a
calculator and a computer; the addition of two new graphing types –
polar and sequence, the addition of a new type of data – the list, the
expansion of the size limit of matrices to 50x50, and the
(unintentional) addition of the ability to program the calculator in
assembly language. The last of these provided a significant boost in
interest in the programmability of the calculator, as the use of
assembly language (as opposed to Texas Instruments' own TI-BASIC)
enabled significantly more performance and flexibility with the programs
able to be used on the calculator.

Carried over from the TI-81 is the TI-82's power source – four AAA
batteries and one CR1616 or CR1620 lithium backup battery (to ensure
programs stored in RAM persist when the AAA batteries are being
changed).

On 2023-01-27, Ben Collver <bencollver@tilde.pink> wrote:
> https://archive.org/details/ti82-calculator

I know it is bad form to reply to one's own post, but here goes:

https://archive.org/details/calculatordrawer

A collection of emulated calculators, providing reference to how they
worked and what the often unique interfaces would consist of. Also great
for doing math.

Collection:

* Electronic Number Muncher
* HP 48GP
* HP 48GX
* HP 49G
* HP 38G
* TI 73
* TI 81
* TI 82
* TI 85
* TI 86
* TI 89
* TI 92
* TI v200 PDA
* The Drawer Stash of Manuals