S
Punched cardW
Punched card
Bit bucketW
Bit bucket
A
Chad (paper)W
Chad (paper)
Herman HollerithW
Herman Hollerith
B
IBM 711W
IBM 711
IBM 1402W
IBM 1402
C
IBM 1442W
IBM 1442
IBM 2540W
IBM 2540
D
KeypunchW
Keypunch
Lace cardW
Lace card
E
Mark senseW
Mark sense
Tabulating machineW
Tabulating machine
F
Two-pass verificationW
Two-pass verification
Unit record equipmentW
Unit record equipment