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"
 138 x 70 x 35 mm3
Weight:  6.0 ounces, 170 grams 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:  
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (US: 4.9 MByte)

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:

Counting Tallying
Counting with 2’s, 3’s, 4’s, 5’s


horizontal rule

If you have additions to the above article please email:

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