DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments Financial Investment Analyst FIA-10
| Date of introduction: | 1989 | Display technology: | LCD multi segment |
| New price: | Display size: | 3+12 * 6 lines | |
| Size: | 6.9" x 3.1" x 0.65" 174 x 78 x 17 mm3 |
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| Weight: | 6.1 ounces, 172 grams | Serial No: | 35319 |
| Batteries: | 2*CR2032 | Date of manufacture: | wk 26 year 1989 |
| AC-Adapter: | Origin of manufacture: | Italy | |
| Precision: | 13 | Integrated circuits: | TMC70035, LH5821, TC5518, TC54256 |
| Memories: | 10 | ||
| Program steps: | Courtesy of: | Joerg Woerner | |
| Download leaflet: | 
(DE: 1.2 MByte) |
Download manual: |
(US: 1.78 MByte) |
With
the Financial Investment Analyst FIA-10 and the Business Edge
introduced Texas Instruments in 1989
two exceptional Financial calculators. 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 hardware is based on a 8-bit
TMS7000
microcomputer supported by a 2k*8 RAM (Toshiba TC5518), 32k*8 OTP-EPROM (Toshiba
TC54256) and a
LCD-controller (Sharp LH5821). The same hardware architecture with increased RAM and a
changed program in the ROM was used with the Fixed Income
Securities calculator.
The software of the FIA-10 supports 10 different worksheets to solve specific
types of problems:
| WS | Title and function of the worksheet |
| #1 | The Time Value of Money / Amortization worksheet analyzes equal cash flows, such as annuities, and generates an amortization schedule. |
| #2 | The Cash Flow worksheet analyzes unequal cash flows; the worksheet calculates net present value, net future value, and internal rate of return. |
| #3 | The Bond Calculations worksheet calculates yield and price of a bond. |
| #4 | The Depreciation worksheet lets you generate a depreciation schedule using one of several depreciation methods. |
| #5 | The Statistics worksheet performs statistical analyses on one-variable and two-variable data, including linear regression models. |
| #6 | The Interest Conversions worksheet converts interest rates between annual percentage rate (APR) and annual effective rate (AER). |
| #7 | The Percent Change worksheet calculates the percent difference between two values. |
| #8 | The Profit Calculation worksheet calculates cost, selling price, margin, or markup. |
| #9 | The Date Calculation worksheet finds the number of days between two dates, or finds a date that is a specified number of days from a given date. |
| #10 | The Memory worksheet provides a visible storage area for as many as 10 values. You can display five of the values at a time. |
The FIA-10 could be called the missing link between traditional, line orientated calculators like the BA-II Plus and the new Graphing calculators started with the TI-81.
If you are interested in the Flight calculators (avstar, prostar) manufactured by Texas Instruments for Jeppesen Sanderson, Inc. you'll ask: Why no product based on this FIA-10 ? The huge display and the function keys would give a perfect product. Jeppesen Sanderson was indeed inspired from the FIA-10 but the product was developed elsewhere. View the wonderful result here.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.