This proposed USA Standard presents the standard Hollerith Card Code representation of the 128 characters of USASCII in twelve-row punched cards. Other standards specify the dimensions and quality of punched paper ca rds, and the dimensions and locations of the holes punched in the cards. This coded representation of the USASCII character set for the twelve-row punched card was developed from research, review of historical work and careful consideration of the use of punched cares in information processing and communication. Resolution of several conflicting requirements is reflected herein.
The Latest from CACM
Shape the Future of Computing
ACM encourages its members to take a direct hand in shaping the future of the association. There are more ways than ever to get involved.
Get InvolvedCommunications of the ACM (CACM) is now a fully Open Access publication.
By opening CACM to the world, we hope to increase engagement among the broader computer science community and encourage non-members to discover the rich resources ACM has to offer.
Learn More
Join the Discussion (0)
Become a Member or Sign In to Post a Comment