Texas Instruments TI-83 Plus Manual Book page 27

Miscellaneous
If you obtain new or upgraded software for your TI-83 Plus, you
may need to provide your current software version and/or the
serial number of your unit. It is also good to know your version
number in case you have difficulties with your TI-83 Plus and
need to contact technical support. Knowing the software version
may make it easier to diagnose the problem.
Verify Maintenance Upgrade Version and Serial Number
1. Press y L .
2. Select
The version number has the format
appears on the line beneath the product ID number.
Verify the Version of the Periodic Table Application
1. On the TI-83 Plus, press Π.
2. Select
The version number of the application is displayed.
Periodic Table for the TI-83 Plus
.
1:ABOUT
and select
Periodic
. The serial number
x.yy
.
INFO
Page 27