Texas Instruments Titanium TI-89 User Manual

Operating the Calculator 145
Operating the Calculator
Operating the CalculatorOperating the Calculator
Operating the Calculator
Turning the Calculator On and Off
Turning the Calculator On and OffTurning the Calculator On and Off
Turning the Calculator On and Off
You can turn your graphing calculator on and off manually by using the ´ and 2®
(or 8®) keys. To prolong battery life, the APD™ (Automatic Power Down™) feature
lets the calculator turn itself off automatically.
Turning the Calculator On
Turning the Calculator OnTurning the Calculator On
Turning the Calculator On
Press ´.
• If you turned the unit off by pressing 2 ®, the unit returns to either the Apps
desktop or the Home screen.
• If you turned the unit off by pressing 8 ® or if the unit turned itself off through
APD, the unit returns to whichever application you used last.

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)