Duplex may refer to any of the following:
Duplex is a term used to indicates that a communications channel can carry signals in both directions.
Duplex printing is a feature on some computer printers that allows them to print on both sides of the paper. They are useful in printing jobs such as the corresponding pages found in a book or magazine.
With RAID, duplexing is mirroring across two RAID cards.
Echoplex, Full-duplex, Half-duplex, Phone terms
