DATAMATH CALCULATOR MUSEUM
|Date of introduction:||April 1975||Display technology:||COS-LCD|
|New price:||$39.95, ¥9.900||Display size:||8|
|Size:||5.1" x 3.0" x 0.45"|
|Weight:||3.3 ounces||Serial No:|
|Batteries:||2*SR44||Date of manufacture:|
|AC-Adapter:||EA-10B||Origin of manufacture:||Japan|
|Precision:||8||Integrated circuits:||Toshiba T3287|
|Program steps:||Courtesy of:||Joerg Woerner|
It was on May 15, 1973 that Sharp released the EL-805 LCD calculator, starting a revolution in electronics. Until then, calculators used fluorescent character display tubes or light-emitting diodes. Using LCD for the number display meant that power consumption was cut dramatically - to a mere 1/100th of previous calculators. This astonishing leap in energy efficiency gave users 100 hours on one AA battery. Sharp's unique silver-coloured COS-LCD display was three years later replaced with the EL-8020 by the common yellow-screen FEM-type display.The EL-8010 was together with the EL-8010S, EL-8015 and EL-8110 one of the last calculators using the silver-coloured COS-LCD display.
The first LCD calculator sold by Texas Instruments could be
found in the TI-1750.
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© Joerg Woerner, January 21, 2002. No reprints without written permission.