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    The TI-82 was released as a more user-friendly version of the TI-85, at the sacrifice of many of its advanced features, but with a lower price tag. It was long believed that the TI-82 could not be programmed in assembly, but, as with the TI-85, a loophole was eventually found, making the TI-82 a much more attractive programming platform. The TI-83 Plus and TI-84 Plus have taken the place of the TI-82 as the standard in math and science classrooms and the TI-82 has been discontinued.


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    TI-82 (old design)       TI-82 (new design)


    CPU 6 MHz ZiLOG Z80
    Memory 32K RAM (28K available to user)
    Screen Size 96x64 pixels, 16x8 characters
    Link Port? Yes
    CBL/CBR Support? Yes
    ViewScreen Model Available? Yes
    TI-Presenter Compatible? Yes
    TI Keyboard Compatible? No
    TI-Navigator Compatible? No


    » TI Connect for the TI-82
    » TI-Graph Link for the TI-82
    » Guide Books from Texas Instruments


    » TI Connect
    The TI Connect is the latest link cable produced by TI. It has a higher data transfer rate than the TI-Graph Link cable. It's a USB cable and lets you transfer data files (such as programs) between your calculator and your computer. TI Connect will only work on MacĀ® computers.

    » TI-Graph Link
    The TI-Graph Link is the older link cable produced by TI. It does not have as high of data transfer rate, but it does work wih almost all calculators. It connects to your serial port and like TI Connect is widely used to transfer data files (such as programs) between your calculator and your computer.


    From time to time, TI will update the internal code of their calculators to work around bugs, optimize functions, and even add features. This results in several versions of each calculator in the marketplace. You can check the ROM version of your TI-82 using the following key sequence and reading the number on your screen:

    [MODE] [ALPHA] [S]

    WARNING: After entering the above key sequence, DO NOT PRESS ENTER! If you do, your calculator's memory will be erased. Press any other key to exit back harmlessly.

    Known ROM versions:

    • 1.0
    • 3.
    • 3*
    • 4*
    • 7*
    • 8.0
    • 9.0
    • 10.0
    • 11.0
    • 12.0
    • 15.0
    • 16.0
    • 17.0
    • 18.0
    • 19.0
    • 19.006


    » IR Link
    The IR Link allows you to control infrared devices from your calculator or communicate with other calculators (to play games or chat) over a wireless connection.

    » Link Cables
    Link cables let you transfer data files (such as programs) between your calculator and your computer.

    » Power Extension Page
    The Power Extension instructions will show you how to use AA (instead of AAA) batteries without making any modifications to your calculator.

    » TI-82 Turbo Page
    These modifications to your TI-82 can overclock the calculator to 3-4 times its original speed.


    » TI-82 BASIC Tips & Tricks Vol. 1 by David Dynes
    » Tutorials at TI-Freakware


    History: Assembly language programming was not supported by TI when the TI-82 was released. As with the TI-81, TI-85 and TI-92, the calculator had to be "hacked" to enable assembly programming.

    The TI-82 was a mystery for a long time. People passed the idea of assembly language support off as a joke, saying it was impossible. Finally, in the middle of 1997, a shell was produced. This first shell was called OShell-82 (later renamed to OS-82), and it was followed shortly by Ash. These both use a similar approach. The TI-82 uses a buffer (as does the TI-85) that points to the next routine that needs to be called when a key is pressed. When the pointer is changed and a key is pressed we can execute assembly. A dummy variable is used that points to a location in RAM where assembly code is stored.

    » Beginning TI-82 Assembly Programming, Part I by Doug Torrance
    » Beginning TI-82 Assembly Programming, Part II by Doug Torrance
    » TI-82 Assembly Programming Guide by Wouter Demuynck
    » The Guide by Jimi Malcolm
    » Tutorials at TI-Freakware


    Several emulators are available to let you simulate TI calculators on your computer. To locate available emulators and learn how to download a ROM image from your calculator, see our Emulators page.

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