Texas Instruments TI-83 Plus Manual page 160

Chapter 4: Development Tools
The input to the TI-83 Plus calculator window can be done in two ways:
Pressing the simulated keys with the mouse cursor and seeing the results on the
screen.
Using the computer keyboard keys and seeing the results on the screen. This
method is provided via three configuration files that are included in the SDK —
83pkeymap.cfg, 83pkeys.cfg, and pckeys.cfg.
The 83pkeymap.cfg file contains the mappings from the PC keys to the TI-83 Plus
keys.
The 83pkeys.cfg file. contains the TI-83 Plus keyboard keys with their values.
The pckeys.cfg file contains the PC keyboard keys with their hex values.
While all three files are viewable and editable in various editors including Notepad,
the only file that should be edited by the developer is the 83pkeymap.cfg file.
TI-83 Plus Developer Guide
149
Third Release May 28, 2002