Texas Instruments introduced the Financial Investment Analyst FIA-10 in 1989. Compared with the former Business Analyst BA-II the FIA-10 uses a huge, alphanumerical display and separate function keys to interact with the user. In most calculations all results and variables are visible simultaneously and like a spreadsheet on the personal computer you can change one value and observe the new results. In fact the FIA-10 is based on internal spreadsheet calculations called worksheets and uses a 8-bit hardware architecture similar to the TI-74 Basicalc and TI-95 Procalc instead the traditional 4-bit calculator chips of a BA-54. The calculator will be carefully packed.