DATAMATH CALCULATOR MUSEUM
|Date of introduction:||1994||Display technology:||LCD|
|New price:||Display size:||10 + 2|
|Size:||5.0" x 2.8" x 0.4"|
|Weight:||2.3 ounces||Serial No:|
|Batteries:||1*CR2025||Date of manufacture:|
|AC-Adapter:||Origin of manufacture:||China|
|Precision:||11||Integrated circuits:||NEC uPD75308|
|Program steps:||Courtesy of:||Joerg Woerner|
Canon F-700 is one of the typical "Do it all" calculators introduced
in the 1990's.
Searching the manufacturer of this typical OEM-calculator is easy, the printed circuit board (PCB) gives the designation Truly 105C.
Mike Sebastian's "Calculator
forensics" reveals with the uncommon result of 9.0000389918 the NEC
uPD75308 as calculator brain, actually a common 4-bit microcomputer with
integrated display drivers and enough RAM to implement a small programmable
The successor of the F-700 sports a two-line display, don't miss the F-720.
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© Joerg Woerner, June 22, 2003. No reprints without written permission.