chad box

chad box

(hardware)
(IBM called this a "chip box") A metal box about the size of a lunchbox (or in some models a large wastebasket), for collecting the chad that accumulated in Iron Age card punches. You had to open the covers of the card punch periodically and empty the chad box.

The bit bucket was notionally the equivalent device in the CPU enclosure, which was typically across the room in another great grey-and-blue box.
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References in periodicals archive ?
* The following were appointed as probationary firefighters as firefighters: Matthew Fallowfield at Paris, Chad Box at Airport, Michael Campbell, James Layman, NIcole Wilhelm, and Patrick Schermerhorn at Cainsville, and Ryan Bekendam and Nathan Bruinsma at Onondaga.
The bacronym presumably was promulgated after keypunch cards had become more familiar than telegraphy tape, certainly not much before 1960, and after the word had been reinterpreted (likely through an intermediary term such as chad box) as (optionally) an uncountable noun referring to a mass of debris.