DATAMATH CALCULATOR MUSEUM
|Date of introduction:||1974||Display technology:||Fluorescent|
|New price:||Display size:||6|
|Size:|| 5.9" x 3.1" x 1.1"
149 x 80 x 28 mm3
|Weight:||5.7 ounces, 162 grams||Serial No:||769079|
|Batteries:||4*AA||Date of manufacture:||year 1974|
|AC-Adapter:|| BH-106 (110V) or
|Origin of manufacture:||Japan|
|Precision:||10||Integrated circuits:||NEC uPD980C|
|Program steps:||Courtesy of:||Peter Muckermann|
Toshiba started already in 1972 the production of portable calculators with the BC-0801. Later products like the BC-0808B shrinked the size and the weights dramatically but today we would still call it huge. This BC-602L was introduced in 1974 and marked another important step in shrinking the electronics of a calculator.
deeper look into the BC-602L reveals easily the secret how engineers created
such a narrow calculator. The display was reduced to only 6 digits instead the
usual 8 digits. Nevertheless the BC-602L is capable of calculations with results
of 10 digits. The small [<>]-key swappes the upper and lower
halves of the result.
Don't miss the BC-602L sporting a grey housing and the BC-603L with a [SQR]-key.
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© Joerg Woerner, February 21, 2004. No reprints without written permission.