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consider-the-mcbee-key-sort-which-is-used-to

Consider the McBee Key-Sort, which is used to organize filing cards. The edges of the cards have holes, some of which are notched. When a long needle is inserted through one of those holes and lifted up, only the non-notched cards rise, thus filtering out the irrelevant records. (via Reanimation Library - Word Processor - Shannon Mattern)


Date posted: 2013/10/29 05:10:57
Date liked: 2013/10/29 05:10:37
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Liked from: Tecznts
Originally posted from: reanimationlibrary.org
Original link: http://www.reanimationlibrary.org/pages/wpmattern
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