Chapter 1: Operating the TI-84 Plus Silver Edition 33
Archiving
Archiving allows you to store data, programs, or other variables to user data archive where they
cannot be edited or deleted inadvertently. Archiving also allows you to free up RAM for variables
that may require additional memory.
For details, refer to Chapter 16.
Communication Link
The TI-84 Plus has a USB port using a USB unit-to-unit cable to connect and communicate with
another TI-84 Plus or TI-84 Plus Silver Edition. The TI-84 Plus also has an I/O port using an I/O
unit-to-unit cable to communicate with a TI-84 Plus Silver Edition, a TI-84 Plus, a TI-83 Plus Silver
Edition, a TI-83 Plus, a TI-83, a TI-82, a TI-73, CBL 2™, or a CBR™ System.
With TI Connect™ software and a USB computer cable, you can also link the TI-84 Plus to a
personal computer.
As future software upgrades become available on the TI Web site, you can download the software
to your PC and then use the TI Connect™ software and a USB computer cable to upgrade your
TI-84 Plus.
For details, refer to: Chapter 19
Error Conditions
Diagnosing an Error
The TI-84 Plus detects errors while performing these tasks.
• Evaluating an expression
• Executing an instruction
• Plotting a graph
• Storing a value
When the TI-84 Plus detects an error, it returns an error message as a menu title, such as
ERR:SYNTAX or ERR:DOMAIN. Appendix B describes each error type and possible reasons for the
error.
Archived variables are indicated by asterisks (ä) to the
left of the variable names.
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