DATAMATH CALCULATOR MUSEUM
Texas Instruments Investment Analyst
|Date of introduction:||1979||Display technology:||LCD|
$50 (October, 1981)
|Display size:||8 (5 + 2)|
|Size:|| 5.3" x 2.9" x
134 x 74 x 9 mm3
|Weight:||2.9 ounces, 82 grams||Serial No:||9832924|
|Batteries:||2*LR44||Date of manufacture:||wk 24 year 1980|
|AC-Adapter:||Origin of manufacture:||USA (ATA)|
|Precision:||11||Integrated circuits:||TP0320 (CD3201)|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual:||(US: 15.5 MByte)|
the Majestic series Texas Instruments started with the Business
Analyst to introduce always a financial counterpart to the scientific
calculator. The Business Analyst-II with
its combined financial and statistical functions continued this approach.
The TI Investment Analyst removed the statistical functions and improved some of the financial functions.
Dismantling the TI Investment Analyst reveals with the TP0320 C-MOS calculator chip with the first ROM version CD3201. Simply by comparing the designation of the integrated circuits of the calculators you'll get the first members of the slimline family:
If you compare the sales prices of three (internally identical) calculators you'll notice:
That's the power of marketing!
In 1984 the era of the slimline calculators was over and Texas Instruments introduced a family of three calculators manufactured in Taiwan:
• TI-35 II
• BA II
Don't miss the rare Business Card, probably the missing calculator using one of the TP032x chips.
We discovered recently with the Sharp EL-503
a scientific calculator with the TP0327 single-chip calculator circuit, closing
the missing link between the TP0326 located in the TI-38 and the TP0328 known
from the Jeppesen Sanderson avstar.
|Slimline Investment Analyst
A new dimension in easy-to-use financial analysis of investments.
Analyze ant investment in which you can determine the amount of money spent on the investment, the amount returned by the investment, and the length of time the investment was owned.
© Texas Instruments, 1981
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.