DATAMATH CALCULATOR MUSEUM
|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
|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|
|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.
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.
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© Joerg Woerner, October 17, 2002. No reprints without written permission.