DATAMATH CALCULATOR MUSEUM |

Canon F-402

Date of introduction: | 1990 | Display technology: | LCD |

New price: | Display size: | 8 (6 + 2) | |

Size: | 4.9" x 2.7" x 0.4" | ||

Weight: | 2.0 ounces | Serial No: | |

Batteries: | 2*LR44 | Date of manufacture: | mth 06 year 1992 |

AC-Adapter: | Origin of manufacture: | China | |

Precision: | 11 | Integrated circuits: | |

Memories: | 1 | ||

Program steps: | Courtesy of: | Joerg Woerner |

This Canon F-402 is a typical scientific and statistical calculator of the 1990's and fits into a whole line of products:

F-402: Statistical calculations | |

F-502: Statistical calculations, Base conversions | |

F-603: Statistical calculations, Logical calculations | |

F-700: 2-variable statistical calculations,
Complex numbers, Equation solver, Programmable |

Dismantling
the F-402 gives a common design of a OEM calculator assembled in China.
Unfortunately the single-chip calculator circuit is soldered the wrong way, we
can't decipher the designation.

Running
Mike Sebastian's "Calculator forensics"
on the F-402 gives a known result of 9.0000278593
and we identify a Toshiba design. This result and the small display size of only
6 digits mantissa and 2 digits exponent recalls products like the Canon F-58
introduced about 1984.

If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, March 17, 2004. No reprints without written permission.