What does $O1 mean in File Extensions?

This page is about the meanings of the acronym/abbreviation/shorthand $O1 in the Computing field in general and in the File Extensions terminology in particular.

Pipe file (DOS)

Computing » File Extensions


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"$O1." Abbreviations.com. STANDS4 LLC, 2015. Web. 29 Mar. 2015. <http://www.abbreviations.com/term/298>.