Hollerith code: Meaning and Definition of

Hol'ler•ith code"

Pronunciation: (hol'u-rith), [key]
— Computers. Computers.
  1. a system for coding data into punched cards, in which each horizontal row is assigned a different value, and letters, numbers, or special characters are encoded as combinations of these values in a vertical column.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.