TI-89 series
A TI-89 | |
| Type | Programmable Graphing |
|---|---|
| Manufacturer | Texas Instruments |
| Introduced | September 1998 |
| Discontinued | 2004 |
| Latest firmware | 2.09 |
| Successor | TI-89 Titanium |
| Calculator | |
| Entry mode | DAL |
| Display type | LCD Dot-matrix |
| Display size | 160×100 |
| CPU | |
| Processor | Motorola 68000 |
| Frequency | 10, 12 MHz |
| Programming | |
| User memory | 256 KB RAM (188 KB user accessible) |
| Firmware memory | 2 MB flash memory (639 KB user accessible) |
| Other | |
| Power supply | 4 AAA batteries, 1 CR1616 or CR1620 for RAM backup |
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 give a numeric result.