Nezarr the Calculator was created in 1977.
OK Calculator was created in 2002.
Curta calculator was created in 1948.
Calculator - comics - was created in 1976.
Graphing calculator was created in 1985.
Expensive Desk Calculator was created in 196#.
Practical Astronomy with your Calculator was created in 1979.
Cloudy Cloud Calculator was created on 1997-12-10.
Willim Seward Burroughs was the first to create a working calculator.
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To be more of a convenience for people.
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