http://upload.wikimedia.org/wikipedia/commons/thumb/5/52/Univac1_unisys.jpg/220px-Univac1_unisys.jpg1

http://www.flickr.com/photos/ted-translators/9092029380/2

http://www.businessballs.com/treeswing.htm3

http://www.flickr.com/photos/mindonfire/2881787386/4

http://www.flickr.com/photos/kag2u/3731515838/5

http://www.flickr.com/photos/futureshape/2973711075/6

Excel方眼紙で設計書を書いたのは誰だぁ！

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http://www.flickr.com/photos/magnificentfrigatebird/6351618309/11

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