「IBM PC」こと「IBM Model 5150」の開発にまつわる話は山ほど出ているので深堀りするつもりはないが、取りあえず関係ありそうなところだけ ...

It is possible to punch individual cards and to have several cards programmed to be punched identically in some columns. The model IBM 24 does not print data entered at the top of the card. A mark on ...