DATAMATH PICTURES

Changing the 4 AAA-sized batteries of the TI-Nspire needs the keyboard to be removed.	The backside of the TI-Nspire is clean, just the RESET button, the slider to release the Keyboard and a covered Port.
The internal construction of the TI-Nspire makes use of just 2 printed circuit boards (PCB's), one for the gray-scale LC-Display and power supply and another one for the computing unit.
The frontside of the PCB's reveal the construction of the 240 * 320 pixel gray-scale LC-Display and the ARM9 based 32-bit RISC processor.
The brain of the TI-Nspire is actually a System-on-Chip based on the ZEVIO architecture from LSI Logic. We assume that the 208 pin housing hosts a 90 MHz ARM9 32-bit RISC processor.
The TI-Nspire uses three different memory chips, a 256k16 NOR Flash-ROM, 32M Bytes NAND Flash-ROM, and 16M16 SDRAM. The clock frequency of the SoC is 27 MHz.