Black handheld calculator with a dark display screen.
Schlüsselwörter
mathematic,
computer keyboard,
paperwork,
efficiency,
memory,
buttons,
calculation,
economy,
science,
school,
electronic,
finance,
precision,
calculating machine,
productivity,
office,
technology,
lightweight,
school supplies,
black,
1980s,
data entry,
ergonomic,
solar energy
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