Electrographic is a term used for punched-card and page-scanning technology that allowed cards or pages marked with a pencil to be processed or converted into punched cards. The primary developer of electrographic systems was IBM, who used mark sense as a trade name for both the forms and processing system.
Electrographic is a term used for punched-card and page-scanning technology that allowed cards or pages marked with a pencil to be processed or converted into punched cards. The primary developer of electrographic systems was IBM, who used mark sense as a trade name for both the forms and processing system.
Source: Wikipedia "Mark sense" · CC BY-SA 4.0
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