DATAMATH CALCULATOR MUSEUM
Texas Instruments BA-20
|Date of introduction:||1986||Display technology:||LCD|
|New price:||Display size:||10|
|Size:|| 4.7" x 5.0" x
120 x 128 x 20 mm3
|Weight:||3.9 ounces, 110 grams||Serial No:|
|Batteries:||LR41 + LR1130 (30µA)||Date of manufacture:||mth 02 year 1989|
|AC-Adapter:||Origin of manufacture:||Taiwan (I)|
|Program steps:||Courtesy of:||Larry Corrado|
|Download leaflet:||(US: 1.1 MByte)|
Texas Instruments introduced in the United States with the BA-20 a very useful calculator. Beside the basic calculator functions 6 additional keys enable the COST, SELL, MARGIN calculations. You enter either two of the variables and get instantly the result of the remaining value. The sibblings TI-1798 and TI-1796 introduced in the same timeframe lacked the financial calculation and other features.
A small clock module with its own battery gives additional functionality to the Profit Manager.
This first generation BA-20 Profit Manager introduced in 1986 makes use of a small sliding switch to select between the power sources. The second generation of the BA-20 replaced the switch with smart electronics.
In Europe a very similar calculator was sold as TI-620.
Don't miss the BA-45 Micro Business Manager and the rare TI-5310 Business Manager.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, December 25, 2001. No reprints without written permission.