The HP-65 was a groundbreaking calculator invented by Hewlett-Packard in 1974.
The Busicom LE-120A calculator was a significant milestone in the history of calculators. Invented by the Japanese company Busicom in 1971.
The Cal Tech calculator, invented by Texas Instruments in 1967, was a significant milestone in the history of calculators.
The ANITA MK-8 calculator was invented by the British company Bell Punch in 1961 and was one of the first electronic desktop calculators.
The IBM 608 was a revolutionary calculator invented by IBM in 1954.
The Arithmometer was a mechanical calculator invented by Charles Xavier Thomas de Colmar in 1820.
The Cylindrical Calculator, invented by Philip Matthaus Hahn in 1773, was one of the first calculators to be designed with a cylindrical form factor.
The Calculating Clock, invented by Wilhelm Schickard in 1623, is considered the oldest calculator in the world.