Wabbitemu - Wabbitemu is an accurate emulator for Texas Instruments based calculators TI-73 to TI-86.
TI Connect CE - Computer software that allows for connectivity between your computer and TI-84 Plus family graphing calculator.
Emu48 - HP38/39/40/48/49 Emulator
meta-calculator - The most sophisticated and comprehensive graphing calculator online. Includes all the functions and options you might need. Easy to use and 100% Free!
Virtual TI - Virtual TI, or "VTI," is a feature-rich graphing calculator emulator for Microsoft...
TiLP - TiLP is a linking program for Texas Instruments' graphing calculators. It can handle any TI calculator (from TI73 to V200) with any link cable. TiLP has all the functions of a linking program and even more.