| 
        
          | The TI-83+/84+ Plus family of calculators
have hard-wiredIdentification Numbers.
 
 
 |  
          | Go to (2nd) Mem and choose
            1: 
              About.  The number listed after ID: will be the calculators 
            unique Identification Number.  Be careful when reading the 8's 
            and the B's.  The 8's are blocky and the B's are more rounded on 
            the right hand side, as you can see in the Identification number 
            listed below: (ID: 0A33F-17FBA-F686).
 |  
 
  
  
        
          |  |  Be sure to record this Identification 
      Numberin a secure location.
 |   If your calculator is lost or stolen, you will most likely be asked to 
      identifythe calculator by this number.
 |