Talk:TI-81

The TI-81 is the first graphing calculator made by Texas Instruments? But The TI-80?
 * The TI-81 came first in 1990, before any other graphing calculator made by TI. The TI-80 was designed as a low-cost alternative to the TI-81/TI-82 in 1995. — Preceding unsigned comment added by Cvsoft (talk • contribs) 04:16, 4 February 2012 (UTC)