Texas Instruments Titanium TI-89 User Manual

Getting Started 69
Batteries
BatteriesBatteries
Batteries
The TI-89 Titanium uses four AAA alkaline batteries and a backup silver oxide battery
(SR44SW or 303). The backup battery is already installed, and the AAA batteries are
provided with your product.
Important OS download information
Important OS download informationImportant OS download information
Important OS download information
New batteries should be installed before beginning an OS download.
When in OS download mode, the APD feature does not function. If you leave your
calculator in download mode for an extended time before you actually start the
download, your batteries may become depleted. You will then need to replace the
depleted batteries with new batteries before downloading.
Accessory port
I/O portUSB port
TI-89 Titanium ports (teacher model)

Texas Instruments Titanium TI-89 Specifications

General

Display Type	LCD
Display Resolution	160 x 100 pixels
Memory	188 KB RAM, 2.7 MB Flash ROM
Type	Graphing Calculator
Display	Monochrome
Processor	Motorola 68000
Processor Speed	12 MHz
Power Source	4 AAA batteries
Connectivity	USB
Programming	TI-BASIC, Assembly
Operating System	AMS (Advanced Mathematics Software)