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Toshiba BC-0801B 

Date of introduction:  1972 Display technology:  Fluorescent
New price:  DM 995.00 Display size:  8
Size:  6.5" x 4.1" x 1.8"    
Weight:  1 pound 2 ounces Serial No:  G67444
Batteries:  6*AA NiCd-pack Date of manufacture:  year 1972
AC-Adapter:  BH-101, BH-102 or
 BH-103 (220V)
Origin of manufacture:  Japan
Precision:  8 Integrated circuits:  TMS0112
Memories:      
Program steps:   Courtesy of:  Joerg Woerner

On a first glance the Toshiba BC-0801B looks like a shrinked version of the BC-0802 introduced somewhat earlier.

The keyboard with the [+=] key and the constant switch makes a design using the single-chip calculator technology introduced by Texas Instruments possible. A good reason to disassemble the robust machine !

BC-0801_IC.jpg (29990 Byte)A deeper look onto the TMS0112 gives a big surprise ! The chip was manufactured in Japan by Toshiba themselves. Please notice the small J (Japan) in the TMS0112NCJ designation.
The later BC-0808B reduced weight by more than 50%.

Frank Boehm: B55895

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

Joerg Woerner, May 28, 2002. No reprints without written permission.