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A punched card typically held multiple data fields, some numeric, some alphabetic. Many data formats, such as the
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format, still use card images as basic building blocks—even though punched cards are now mostly obsolete.
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were usually used for simulated card input or output.
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63:"RFC 678: Standard File Formats"
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88:"Definition of: punch card"
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95:. Retrieved
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92:PC Magazine
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
