DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1780
|Date of introduction:||1984||Display technology:||LCD|
|New price:||DM 17.30||Display size:||8|
|Size:|| 2.3" x 3.9" x
58 x 99 x 7 mm3
|Weight:||1.3 ounces, 37 grams||Serial No:||0050799|
|Batteries:||n.a.||Date of manufacture:||mth 09 year 1983|
|AC-Adapter:||Origin of manufacture:||Taiwan (C)|
|Program steps:||Courtesy of:||Joerg Woerner|
TI-1780 looks like a TI-1706 in a credit card format. You can't compare it with
the stylish TI-1754 introduced some years before.
The inside view of this TI-1780 manufactured in September 1983 by Compal Electronics in Taiwan shows indeed similarities to the TI-1706 mentioned earlier.
Later credit card sized calculators like the TI-1786 got an even cheaper design.
Don't miss the Casio FILM CARD SL-800, a real credit card sized calculator with a thickness of only 0.030".
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© Joerg Woerner, September 29, 2002. No reprints without written permission.