TI-80
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TI-80 is a graphing calculator made by Texas Instruments. It was originally designed in 1995 to be used at a middle school level (grades 6-9).
The TI-80 featured the smallest screen and slowest processor (980KHz proprietary) of any TI graphing calculator. In comparison, the TI-81 featured a 2MHz Zilog Z80 processor. However, the TI-80 did feature 7KB of RAM (compared with the TI-81's mere 2KB). The TI-80 also had more built in functions than the TI-81 (such as list and table functions, as well as fraction and decimal conversions). Like the TI-81, the TI-80 did not feature a link port. The TI-80 was also the only graphing calculator to use 2 CR2032 lithium batteries (instead of the standard 4 AAA batteries with a lithium backup battery).
Since its release, it has been superseded by the superior TI-73 and TI-73 Explorer and has been discontinued.
External links
- Features of the TI-80 (http://education.ti.com/us/product/tech/80/features/features.html)