Texas Instruments TI-83-Plus User Manual

10 Chapter 2: TI-83 Plus Specific Information
TI-83 Plus Developer Guide Third Release May 28, 2002
The explanations of some Flash ROM areas below are for informational purposes only.
Boot (Code) Area
This area contains the following unalterable items.
• Boot-strap code
• System initialization code
• Software validation routine
• Program download routine
• Software product ID
• Product code update loader
Certification Area
This area contains program authentication information.
• Calculator serial number
• Unit certificate public key
• Date-stamp public key
• Date-stamp certificate
• Unit certificate and license status
• Group certificates
Operating System (OS) Area
This area contains the operating system of the calculator — math, display, keyboard,
I/O, etc. routines.
Certificate List Area
This area contains a list of unit certificates for the specific calculator.
User APPS (Calculator Software Applications)/Data Area
This area is shared by applications and variables archived by the user for long-term
storage.

Texas Instruments TI-83-Plus Specifications

General

Display Type	LCD
Display Resolution	96 x 64 pixels
Power Source	4 AAA batteries
Programming Language	TI-BASIC, Z80 Assembly
Backup Power	CR1616 or CR1620 lithium battery
RAM	24 KB
Processor	Zilog Z80
Weight	7.4 oz (210 g) with batteries
Dimensions	7.3 x 3.5 x 0.9 inches