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The TI-59 is an early programmable calculator, that was manufactured by Texas Instruments from 1977. It is the successor to the TI SR-52 , quadrupling the number of "program steps" of storage, and adding "ROM Program Modules" (an insertable ROM chip, capable of holding 5000 program steps).
TI-55 II Calculator, the second variant, with an LCD display. The TI-55 is a programmable calculator first manufactured by Texas Instruments in 1977. It has an LED display, [1] and weighs 6.4 ounces (180 grams). It is programmable to hold up to 32 key-codes that allow the user to repeat simple calculations with different values.
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The following table compares general and technical information for a selection of common and uncommon Texas Instruments graphing calculators. Many of the calculators in this list have region-specific models that are not individually listed here, such as the TI-84 Plus CE-T, a TI-84 Plus CE designed for non-French European markets.
The TI-108 is a basic handheld calculator manufactured by Texas Instruments aimed at introducing younger students to basic arithmetic and calculator functionality. [1] The TI-108 is widely used among younger students due to its low cost, durability, and simplicity.
The TI 73 series is a series of graphing calculators made by Texas Instruments, all of which have identical hardware. The original TI-73 graphing calculator was originally designed in 1998 as a replacement for the TI-80 for use at a middle school level (grades 6-8).
TI-15 Explorer is a calculator designed by Texas Instruments, intended for use in classes from grades 3–6. [1] It is the successor to the TI-12 Math Explorer. For younger students, TI recommends the use of the TI-108. For older students, TI recommends the use of the TI-73 Explorer.
The TI-54 was a scientific calculator produced by Texas Instruments, primarily marketed towards engineers and science professionals. [1] It was introduced in 1981, and at the time was the only calculator that could deal with complex numbers. [2] It was discontinued in 1983.