The listing, Used Texas Instrument TI-89 has ended.
A TI-89
Type Programmable Graphing
Manufacturer Texas Instruments
Introduced 1998
Discontinued 2004
Successor TI-89 Titanium
Calculator
Entry mode DAL
Display type LCD Dot-matrix
Display size 160×100
CPU
Processor Motorola 68000
Frequency 10, 12, or 16 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
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