Category:CARDboard Illustrative Aid to Computation

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<nowiki>CARDboard Illustrative Aid to Computation; CARDboard Illustrative Aid to Computation; CARDboard Illustrative Aid to Computation; learning aid</nowiki>
CARDboard Illustrative Aid to Computation 
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CARDIAC is a learning aid in the form of a cardboard computer which was developed by David Hagelbarger and Saul Fingerman for Bell Telephone Laboratories in 1968.

Media in category "CARDboard Illustrative Aid to Computation"

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