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- Calculating and Printing Machine, Made by Leon Bollee, France, circa 1900 - Leon Bollee manufactured automobiles in France from 1895 until his death in 1913. He also invented a series of mechanical calculating machines -- forerunners of the electric calculator. Bollee made an important contribution to aviation when he provided Wilbur Wright with workspace and a crew of mechanics for Wright's successful airplane demonstrations at Le Mans, France, in 1908.
- circa 1900
- Collections - Artifact
Calculating and Printing Machine, Made by Leon Bollee, France, circa 1900
Leon Bollee manufactured automobiles in France from 1895 until his death in 1913. He also invented a series of mechanical calculating machines -- forerunners of the electric calculator. Bollee made an important contribution to aviation when he provided Wilbur Wright with workspace and a crew of mechanics for Wright's successful airplane demonstrations at Le Mans, France, in 1908.
- Copy of a Custom "Baby Calculator" Presented to Queen Elizabeth II for Prince Charles, 1953 -
- 1953
- Collections - Artifact
Copy of a Custom "Baby Calculator" Presented to Queen Elizabeth II for Prince Charles, 1953
- Curta Mechanical Calculator, Model II, 1954-1973 -
- 1954-1973
- Collections - Artifact
Curta Mechanical Calculator, Model II, 1954-1973
- "Abacus" Textile, Designed by Paul Rand for Maix Fabrics, 1949 -
- 1949
- Collections - Artifact
"Abacus" Textile, Designed by Paul Rand for Maix Fabrics, 1949
- Friden Electro-Mechanical Calculator, Model STW, 1949-1966 - Mechanical adding machines were indispensable office equipment used before the computer era. These devices were perfected by the American Arithmometer Company in 1886, spurred on by William Seward Burrough's desire to reduce drudgery in clerical arithmetic work. Transistors and electronic desktop calculators displaced adding machines in the 1950s; by the 1970s, microchips reduced calculators to the size of a shirt pocket.
- 1949-1966
- Collections - Artifact
Friden Electro-Mechanical Calculator, Model STW, 1949-1966
Mechanical adding machines were indispensable office equipment used before the computer era. These devices were perfected by the American Arithmometer Company in 1886, spurred on by William Seward Burrough's desire to reduce drudgery in clerical arithmetic work. Transistors and electronic desktop calculators displaced adding machines in the 1950s; by the 1970s, microchips reduced calculators to the size of a shirt pocket.
- Patent Model of Edmondson's Circular Calculating Machine, 1883 - Mechanical calculators used gears, cogs, levers, and rotating drums to solve mathematical problems indirectly. While Edmondson's Circular Calculator was rugged and reliable, its "stepped drum" system required people to slide plates and levers, making it difficult to master and time-consuming to operate. By the late 19th century, improved adding machines became popular, helping to reduce the common errors of human calculation.
- 1883
- Collections - Artifact
Patent Model of Edmondson's Circular Calculating Machine, 1883
Mechanical calculators used gears, cogs, levers, and rotating drums to solve mathematical problems indirectly. While Edmondson's Circular Calculator was rugged and reliable, its "stepped drum" system required people to slide plates and levers, making it difficult to master and time-consuming to operate. By the late 19th century, improved adding machines became popular, helping to reduce the common errors of human calculation.
- Burroughs B9138 High Speed Reader/Sorter, circa 1977 -
- circa 1977
- Collections - Artifact
Burroughs B9138 High Speed Reader/Sorter, circa 1977
- Burroughs Equipment, 1950-1960 -
- 1950-1960
- Collections - Artifact
Burroughs Equipment, 1950-1960
- Calculating and Printing Machine, Made by Leon Bollee, France, circa 1900 - Leon Bollee manufactured automobiles in France from 1895 until his death in 1913. He also invented a series of mechanical calculating machines -- forerunners of the electric calculator. Bollee made an important contribution to aviation when he provided Wilbur Wright with workspace and a crew of mechanics for Wright's successful airplane demonstrations at Le Mans, France, in 1908.
- circa 1900
- Collections - Artifact
Calculating and Printing Machine, Made by Leon Bollee, France, circa 1900
Leon Bollee manufactured automobiles in France from 1895 until his death in 1913. He also invented a series of mechanical calculating machines -- forerunners of the electric calculator. Bollee made an important contribution to aviation when he provided Wilbur Wright with workspace and a crew of mechanics for Wright's successful airplane demonstrations at Le Mans, France, in 1908.
- Calculating and Printing Machine, circa 1900 - Leon Bollee manufactured automobiles in France from 1895 until his death in 1913. He also invented a series of mechanical calculating machines -- forerunners of the electric calculator. Bollee made an important contribution to aviation when he provided Wilbur Wright with workspace and a crew of mechanics for Wright's successful airplane demonstrations at Le Mans, France, in 1908.
- circa 1900
- Collections - Artifact
Calculating and Printing Machine, circa 1900
Leon Bollee manufactured automobiles in France from 1895 until his death in 1913. He also invented a series of mechanical calculating machines -- forerunners of the electric calculator. Bollee made an important contribution to aviation when he provided Wilbur Wright with workspace and a crew of mechanics for Wright's successful airplane demonstrations at Le Mans, France, in 1908.