Texas Instruments PLUS TI-89 - Manual (Page 72)

Chapter 2: Operating the Calculator 55
02OPER DOC TI-89/TI-92 Plus: Operating the TI-89/TI-92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 55 of 44
From the Home screen, press
ƒ and then select
A:About .
Your screen will be different
than the one shown to the right.
Press ¸ or N to close the
screen.
The information on the About screen is intended for situations
such as:
¦ If you obtain new or upgraded software for your TI -89 / TI-92 Plus ,
you may need to provide your current software version and/or the
ID number of your unit.
¦ If you have difficulties with your TI -89 / TI-92 Plus and need to
contact technical support, knowing the software version may
make it easier to diagnose the problem.
Finding the Software Version and ID Number
In some situations, you may need to find out information about
your
TI - 89 / TI - 92 Plus , particularly the software version and the
unit’s ID number.
Displaying the
“About” Screen
When Do You Need
this Information?