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The TI-89 and the TI-89 Titanium are graphing calculators developed by Texas Instruments (TI). They are differentiated from most other TI graphing calculators by their computer algebra system , which allows symbolic manipulation of algebraic expressions—equations can be solved in terms of variables— whereas the TI-83 / 84 series can only ...
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TI-89 Titanium: Motorola 68000 @ ≤16 MHz 256 KiB of RAM (188 KB user accessible), 2.7 MB of Flash ROM 160×100 pixels 7.5 × 3.3 × 0.9 Yes 2004 149.99 Allowed Not Allowed TI-92, TI-92 II: Motorola 68000 @ 10 MHz 68 KB of RAM/136 KB of RAM 240×128 pixels 4.7 x 8.2 x 1.5 Yes 1995/1996 200 (TI-92) Not Allowed Not Allowed TI-92 Plus
The TI-86 is a programmable graphing calculator introduced in 1996 which was produced by Texas Instruments. The TI-86 uses the Zilog Z80 microprocessor . It is partially backwards-compatible with its predecessor, the TI-85 .
The TI-Nspire is a graphing calculator line made by Texas Instruments, with the first version released on 25 September 2007. [1] [better source needed] The calculators feature a non-QWERTY keyboard and a different key-by-key layout than Texas Instruments's previous flagship calculators such as the TI-89 series.
The TI-92 Plus (or TI-92+) was released in 1998, slightly after the creation of the almost-identical (in terms of software) TI-89, while physically looking exactly like its predecessor, the TI-92 (which lacked flash memory). Besides increased memory over its predecessor, the TI-92 Plus also featured a sharper "black" screen, which had first ...
The TI-99 series also initially competed with the Apple II and TRS-80. [4] The calculator-style keyboard of the TI-99/4 was cited as a weak point, and TI's reliance on ROM cartridges and their practice of limiting developer information to select third parties resulted in a lack of software for the system. The TI-99/4A was released in June 1981 ...