In 1957, IBM released the first commercial all-transistor calculator named IBM 608.
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== == The brand name was Bomar and it was in 1975 - they cost around $150 when they were first introduced
The first calculator was never launched, because it was in fact a mechanical calculator.
The very first calculator ever used could be an abicus, an electronic calculator, or even your brain. The first calculator invented was the abacus.
who invented the first mechanical digital calculator
the first ever calculator was said to be used by Blaise Pascal's father to count his money.