zone punch

Noun.  (computing) A hole punched (normally in the top two or three positions) of a punched card in addition to another in order to designate a different (sometimes related) character or to add a plus or minus sign.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.