TI-82
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The TI-82 is a graphing calculator made by Texas Instruments. The TI-82 was designed in 1993 as a stripped down, more user friendly version of the TI-85, and as a replacement for the TI-81. It was the direct predecessor of the TI-83. It shares with the TI-85 a 6MHz ZiLOG Z80 microprocessor. Like the TI-81, the TI-82 features a 96x64 pixel display, and the core feature set of the TI-81 with many new features.
Features of the TI-82
As noted above, the TI-82 was powered by the same processor that powered its cousin, the TI-85, which was a 6MHz ZiLOG Z80 microprocessor. This was an improvment over the TI-81's 2MHz Z80 proccessor. In addition, the available RAM was increased more than tenfold - from 2.4KB to 28KB (the same amount as the TI-85).
Some of the more notable improvements of the TI-82 over the TI-81 were: the addition of a link port to enable programs and other data to be transferred between two calculators or between a calculator and a computer; the addition of two new graphing types - polar and sequence; the addition of a new type of data - the list; the expansion of the size limit of matrices to 50x50; and the (unintentional) addition of the ability to program the calculator in assembly language. The last of these provided a significant boost in interest in the programmability of the calculator, as the use of assembly language (as opposed to Texas Instruments' own TI-BASIC) enabled significantly more performance and flexibility with the programs able to be used on the calculator.
Carried over from the TI-81 is the TI-82's power source - four AAA batteries and one CR1616 or CR1620 lithium backup battery (electricity) (to ensure programs are kept when the AAA batteries are being changed).
External links
- Features of the TI-82 (http://education.ti.com/us/product/tech/82/features/features.html)
- ticalc.org (http://www.ticalc.org) – The largest archive of TI programs this side of the intarweb.
- A site with frequent news features, tutorials, active forums, a large and convenient archive and more is CalcGames.org (http://www.calcgames.org)