DATAMATH CALCULATOR MUSEUM
|Date of introduction:||1973||Display technology:||Fluorescent|
|New price:||Display size:||8|
|Size:|| 6.9" x 4.0" x 1.6"
175 x 102 x 40 mm3
|Weight:||9.8 ounces, 270 grams||Serial No:||M50482|
|Batteries:||5*AA||Date of manufacture:||wk 45 year 1973|
|AC-Adapter:|| BH-101 (115V) or
|Origin of manufacture:||Japan|
|Precision:||8||Integrated circuits:||Rockwell R15330PB|
|Program steps:||Courtesy of:||Peter Muckermann († April 21, 2021)|
This Toshiba BC-0811B combined the keyboard technology of the BC-0808B with the housing of the BC-0804B and started the era of basic calculators with a fully independent memory.
The BC-0811B seems to be one of the first portable calculators with an integrated memory, Texas Instruments followed in 1974 with the TI-2550. Inside the BC-0811B we discovered a Rockwell R15330PB calculator circuit manufactured in October, 1973.
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© Joerg Woerner, February 21, 2004. No reprints without written permission.