National Semiconductor Datachecker 103 A

Date of introduction:   Display technology:  LCD
New price:   Display size:  8
Size:  2.8" x 6.0" x 0.3"    
Weight:  2.8 ounces Serial No:  
Batteries:  2*LR43  Date of manufacture:  
AC-Adapter:   Origin of manufacture:  Taiwan
Precision:  8  Integrated circuits:  NEC uPD1833G
Memories:  3    
Program steps:   Courtesy of:  Joerg Woerner

The National Semiconductor Datachecker 103 A is just another Account Manager like the Olivetti Chequebook, the Radio Shack EC-430 or the Texas Instruments TI-2200 Checkwriter.

Don't miss the Corvus CheckMaster introduced by MOSTEK already in 1975. This rare product retains the balance of your memory even when shut off but uses power-hungry electronics.

If you have additions to the above article please email:

Joerg Woerner, May 22, 2002. No reprints without written permission.