DATAMATH CALCULATOR MUSEUM |
CASIO FILM CARD SL-800
Date of introduction: | November 1983 | Display technology: | LCD |
New price: | Display size: | 8 | |
Size: | 2.1" x 3.4" x 0.03" 54 x 85 x 0.8 mm3 |
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Weight: | 0.4 ounces, 12 grams | Serial No: | 4L105A |
Batteries: | n.a. | Date of manufacture: | |
AC-Adapter: | Origin of manufacture: | Japan | |
Precision: | 8 | Integrated circuits: | |
Memories: | 1 | ||
Program steps: | Courtesy of: | Joerg Woerner |
Within the Datamath Calculator Museum you'll notice a lot of credit card sized calculators like the TI-1754, TI-1780, TI-1786, TI-307, Canon LC-7, Casio LC-79, or Toshiba LC-851. All these calculators have two dimensions common: The length and the width. But we never talked about the third dimension, the height or thickness of the calculators.
The Casio FILM CARD SL-800 is the only real credit card sized calculator and matches exactly the ISO 7810 standard. This standard is valid for all credit and debit cards and defines a size of 85mm x 54mm x 0.8mm (3.375" x 2.175" x 0.030").
Squeezing a calculator in such a thin housing is not the easiest job and some limitations are obvious:
• Be sure not to damage
the unit by bending or dropping. For example, do not carry it in your
hip pocket. • If any part of the display or its reverse side is touched, it will momentarily discolor, however, this is not a malfunction but results from the unit's super thinness. Special care should be taken not to excessive pressure the display or push it with a pointed object in order to prevent malfunctions. • Note that the unit has small indentations which are a necessary part of the production process. • Since the unit is composed of precision electronic parts, never attempt to take it apart. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 28, 2004. No reprints without written permission.