|LC control no.||sh 85109085
|Topical heading||Punched card systems
|Variant(s)||Codes for punched card systems
Perforated card systems
Punched card systems--Business
|See also||Card system in business
Computer input-output equipment
Computer storage devices
Information storage and retrieval systems
|Scope note||This heading may be further subdivided by subject, e.g. Punched card systems--Chemistry.
|Found in||Foster, A. Reviewing the Department of Social and Rehabilitation Services' efforts to computerize alcohol and drug abuse treatment information, 1995: cover (State of Kansas)
Maine. Legislature. Joint Standing Committee on State Government. Organization of state data processing, 1974.