DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Corvus 500
| Date of introduction: | 1974 | Display technology: | LED-stick |
| New price: | Display size: | 10 + 2 | |
| Size: | 5.6" x 2.8" x 1.3" 142 x 72 x 33 mm3 |
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| Weight: | 4.9 ounces, 140 grams | Serial No: | 462215 |
| Batteries: | 3*AA NiCd | Date of manufacture: | mth 10 year 1975 |
| AC-Adapter: | 3.6V DC, 125mA | Origin of manufacture: | Hong Kong |
| Precision: | 10 | Integrated circuits: | Mostek MK50075A, MK50103, MK50104 |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Peter Muckermann |
The
Corvus 500 continued an approach started already in 1972 with the
Hewlett-Packard HP-35: An universal
Data-Processor with external program memory to define the final function of the
calculator. Mostek sold two different ROM-sets - the MK50101/2 for financial
calculators and this MK50103/4 found in a lot of scientific calculators.
Don't miss the Corvus 600.
Learn
more about Mostek Calculator Integrated Circuits.
One
advantage of the MK50075 calculator chip was it's ability to support external
displays with a 10-digit mantissa and 2-digits of exponent.
The Corvus 615 uses the same housing but sports a
green fluorescent display. Other calculators sold under
the Corvus brand are the 310, 320,
400, and 415 models. Don't
miss the colorful Corvus 804.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, October 17, 2002. No reprints without written permission.