<P> TI - 81 </P> <Tr> <Th> <P> TI - 82 </P> </Th> <Td> Zilog Z80 @ 6 MHz </Td> <Td> 28 KB of RAM </Td> <Td> 96 × 64 pixels 16 × 8 characters </Td> <Td> 6.9 × 3.4 × 1.0 </Td> <Td> TI - BASIC, Assembly (using exploits) </Td> <Td> I / O Port </Td> <Td> </Td> <Td> TI - 81 </Td> <Td> TI - 83 </Td> <Td> Discontinued </Td> <Td> Allowed </Td> </Tr> <P> TI - 82 </P> <Tr> <Th> TI - 83 </Th> <Td> Zilog Z80 @ 6 MHz </Td> <Td> 32 KB of RAM </Td> <Td> 96 × 64 pixels 16 × 8 characters </Td> <Td> 7.3 × 3.5 × 1.0 </Td> <Td> TI - BASIC, Assembly (built - in) </Td> <Td> I / O Port </Td> <Td> </Td> <Td> TI - 82 </Td> <Td> TI - 83 Plus </Td> <Td> 125 Discontinued </Td> <Td> Allowed </Td> </Tr>

What is the difference between ti-82 and ti-84