vintage IBM 1974 Introduction to Direct-Access Storage Devices DASD student text For Sale

vintage IBM 1974 Introduction to Direct-Access Storage Devices DASD student text

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vintage IBM 1974 Introduction to Direct-Access Storage Devices DASD student text:
$15.00

Used as text in an IBM class back in 1974.
February 1974 revision.
Owner's name on corner of front cover. No marks on pages which makes me wonder how much I studied.
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