DATAMATH CALCULATOR MUSEUM
Kmart Corporation KMC 2000
|Date of introduction:||September 1981||Display technology:||LCD|
|New price:||$12.95 (SRP Sep. 1981)||Display size:||8|
|Size:|| 3.6" x 2.3" x 0.3"
91 x 57 x 8 mm3
|Weight:||1.3 ounces, 38 grams||Serial No:||200005 004884|
|Batteries:||2*LR43||Date of manufacture:||mth 05 year 1982|
|AC-Adapter:||Origin of manufacture:||Taiwan|
|Precision:||8||Integrated circuits:||NEC uPD1832G|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual:||(US: 2.8 MByte)|
KMC 2000 calculator sold in 1984 by
Kmart Corporation look familiar to you? Please
compare it with the TI-1788 or Privileg LC 6000,
Radio Shack EC-303, Systema LC1400 and probably many more
The KMC 2000 calculator introduced in 1981 combines in a very compact package both a calculator with 3-Key Memory and a clock with alarm-time. We know similar, but larger products including a stopwatch since 1978 with the Canon LC Quartz, Toshiba LC-833WA, and Texas Instruments TI-1790.
Dismantling this KMC 2000 calculator manufactured in May 1982 by a non-disclosed Original Equipment Manufacturer (OEM) reveals a very clean design centered around a NEC uPD1032G single-chip calculator circuit soldered on a double-sided printed circuit board (PCB) and powered by two small LR43 batteries.
Inspecting the PCB of this KMC 2000 calculator brought our attention to a small mark reading CC-31 A1, we noticed similar marks already with the TI-1788, TI-1788 II and TI-1788 III, the latter manufactured by Compal Electronics and started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.
IIf you have additions to the above article please email: email@example.com.
© Joerg Woerner, April 22, 2020. No reprints without written permission.