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Texas Instruments ABLE-I

Date of introduction:  1976 Display technology:  LED-stick
New price:   Display size:  8
Size:  5.5" x 2.8" x 1.4"    
Weight:  5.5 ounces Serial No:  15339
Batteries:  2 * AA NiCd  Date of manufacture:  wk 40 year 1977
AC-Adapter:  AC9130 Origin of manufacture:  USA (LTA)
Precision:   Integrated circuits:  
Memories:      
Program steps:   Courtesy of:  Joerg Woerner

The ABLE-I electronic calculator consists of the ABLE calculator base unit and one of the six colorful, interchangeable snap-on keyboard faces delivered with the ABLE.

The ABLE-I limits the functions of a standard calculator by supporting only few keys:

[0] – [1], [+], [=], [C]

In conjunction with K-1 “Elementary Mathematics Concepts with Calculators”, a supplementary learning program for kindergarten/first grade students developed my math educators at the University of California ’s Lawrence Hall of Science, the uses include:

CountingTallying

Counting with 2’s, 3’s, 4’s, 5’s


 

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

© Joerg Woerner, October 20, 2007. No reprints without written permission.