has gloss | eng: IBM 80 series sorters Card Sorters in the IBM 80 series were: *IBM 80 Electric Punched Card Sorting Machine, model 1, Introduced by IBM in 1925, 450 cards per minute. This sorter was almost twice the speed of the older Hollerith 70 vertical sorter and used an entirely new magnetically operated horizontal sorting design. At the close of 1943, IBM had 10,200 of these units on rental. *'IBM 80, model 2, 19??, 250 cards per minute *IBM 81 Sorter, ???? *IBM 82 Sorter, 1949. Sorted cards at 650/minute *IBM 83 Sorter, 19??. Sorted cards at 1000/minute *IBM 84 Sorter, 19??. Sorted cards at 2000/minute |