Texas Instruments
Model: TI-83
Battery: 4 AAA + CR1620
Adapter:
Year: 1996
Chip: T6C79 toshiba
Info:From a users point of view the TI-83 is compatible with the TI-82 but added some financial functions and the "official" support of assembly programming. A smart decision, the TI-83 developed itself as a popular programming platform and prepared the tremendous success of the TI-83 Plus.
Model: TI-83 plus
Battery: 4 AAA + CR1620
Adapter:
Year: 1999
Chip: CPU: Zilog Z84C0008 ASIC: TI REF 9815455 Flash: AM29F400 RAM: SRM2B256 Display: Toshiba T6A04
Info:The TI-83 Plus added Flash technology to the TI-83 Graphing calculator. This technology gives you the flexibility to add calculator software applications and additional functionality beyond math and science, providing long-term value.
Model: TI-84 plus
Battery: 4*AAA + SR44
Adapter:
Year: 2004
Chip: ASIC: TI REF 83PLUSB/TA2 or TI REF 84PLUSB/TA3 Flash: 29LV800 Display: Toshiba T6K04
Info:The TI-84 Plus doubles the capacity of the Flash ROM of the original TI-83 Plus to 480k Bytes. Other enhancements include a high contrast LCD, an integrated USB port for computer connectivity, an internal clock, and an available kickstand. The clock speed of the Z80 compatible microprocessor raised to 15 MHz compared to the 6 MHz of the earlier TI-83 products