Punched-Card to Magnetic-Tape Converter
نویسنده
چکیده
THE principal devices for converting source data to magnetic tape recording for Univac* are the card-to-tape converter and the Unityper. * Unityper is the, logical conversation medium for input of 'otherwise untreated data. Files of punched cards, however, represent to the owner an investment of time and expense in preparing material for other treatment. The card-to-tape converter provides a means whereby these files can be made immediately available for use in Univac. The specifications for the Univac system card-to-tape converter shown in Figure 1 evolved from consideration of the characteristics of various punchedcard systems already in existence, and of the specifications of the more recently designed Univac. The largest quantity of card-encoded data has been prepared on 12-row 80column cards. Using this fact as a point of departure, the system was evolved to encompass four imperatives:
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