1. Texas Instruments: All model numbers that begin with TI-89 or TI-92 and the TI-Nspire CAS
2. Hewlett-Packard: HP 48GII and all model numbers that begin with HP 40G, HP 49G, or HP 50G
3. Casio: Algebra fx 2.0, ClassPad 300 and ClassPad 330, and all model numbers that begin with CFX-9970G
4. handheld, tablet, or laptop computers, including PDAs
5. Electronic writing pads or pen-input
6. Calculators built into cell phones or any other electronic communication devices