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Calculator Information

Calculator Information Section

Techno-Plaza focuses on all CAS (Computer Algebra System) enhanced calculators.


Note: The TI-89 and TI-92+ with hardware version 2 contain a 12 MHz processor in place of the 10 MHz one with the first hardware version. If you have a calculator that was purchased more than a year after the TI-89 was released, you probably have hardware version 2.

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