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Texas Instruments TI Business Analyst

Date of introduction:  June 13, 1976 Display technology:  LED-stick
New price:  $49.95 Display size:  8 (5 + 2)
Size:  5.8" x 3.1" x 1.4"
 148 x 78 x 36 mm3
   
Weight:  4.0 ounces, 114 grams Serial No:  3680059
Batteries:  BP5, BP8 Date of manufacture:  wk 26 year 1978
AC-Adapter:  AC9131, AC9132 Origin of manufacture:  USA (ATA)
Precision:  11 Integrated circuits:  TMC0982
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
Download leaflet:   (US: 1.9 MByte) Download manual:   (US: 5.6 MByte)

Business-Analyst_Back.jpg (58710 Byte)The Business Analyst was introduced mid of 1976 together with the entry calculator TI-30 and the SR-40. The technology behind the Business Analyst was identical to the SR-40 and is described there.

The Business Analyst was the first in a successful line targeting financial calculations. It continued with the face-lifted Business Analyst I, the LCD model Business Analyst II and you'll find in each scientific/programmable epoch a financial variant. 

The calculator was able to perform 5 different calculation modes:

Standard math
Annuities
Compound interest
Profit margin
Linear regression

If you think about the allegory of the SR-40 and TI-30 you'll find it with the Business Analyst and the Money Manager.

Business-Analyst_PCB.jpg (25322 Byte)Simply by comparing the designation of the integrated circuits of the entry line "Majestic" calculators, you'll get the all members of this family:

 

TMC0980    Goulds Pumpulator uses a custom design ROM (CD9801)
TMC0981    TI-30 and SR-40
 
TMC0982    Business Analyst and TI-41
TMC0983    Programmer
TMC0984    TI-33

Digging deeper into the TMC098x calculator chips you'll locate an OEM-chip used on a TI-30 "clone" manufactured in Hong Kong:

TMC0985    Amelia Scientific 2001

The usage of these modern calculators was easy, Texas Instruments invented with the SR-52 the AOS entry that allowed up to three pending operations within the parantheses.

In Europe this calculator was sold as TI-41.

The TI Business Analyst is featured in the Texas Instruments Incorporated bulletin CL-207A dated 1977.

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If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, December 5, 2001. No reprints without written permission.