14 events with tag "punch card"
1884
ID: 4216
Herman Hollerith files first patent application for his electromechanical punched card tabulator while working at U.S. Patent Office
ID: 4216
1886
ID: 4217
Hollerith receives his first patent (U.S. Patent 395,782) for 'Art of Compiling Statistics' - foundation of punch card data processing
ID: 4217
1889
ID: 4218
Hollerith's tabulating system successfully tested by Baltimore Department of Health for vital statistics
ID: 4218
1890
ID: 4219
Hollerith's electric tabulating machines process U.S. Census in 2.5 years instead of predicted 13 years - saves $5 million
ID: 4219
1896
ID: 4220
Herman Hollerith founds the Tabulating Machine Company to manufacture and market his punch card equipment
ID: 4220
1900
ID: 4221
Hollerith develops automatic card-feed mechanism and automatic sorting box - major improvements to tabulating system
ID: 4221
1906
ID: 4222
Hollerith introduces Type I Tabulator with plug-board wiring for flexible programming of tabulation tasks
ID: 4222
1911
ID: 4225
James Powers founds Powers Accounting Machine Company as competitor to C-T-R, offering printing tabulators
ID: 4225
1911
ID: 4224
June 16, 1911
Charles Flint merges Tabulating Machine Company with three other firms to create Computing-Tabulating-Recording Company (C-T-R)
ID: 4224
1920
ID: 4228
C-T-R introduces printing tabulator to compete with Powers machines - can print results directly on paper
ID: 4228
1921
ID: 4229
Hollerith retires from C-T-R board, ends active involvement in punch card industry he created
ID: 4229
1928
ID: 4232
IBM introduces 80-column punch card format, replacing 45-column cards - becomes industry standard for decades
ID: 4232
1928
ID: 4249
Remington Rand introduces 90-column punch card to compete with IBM's 80-column standard - not widely adopted
ID: 4249
1929
ID: 4233
November 17, 1929
Herman Hollerith dies at age 69 - his punch card technology foundation for modern computing industry
ID: 4233