The DuoDisk was plagued by reliability problems , however , and did not catch on as well as the Apple IIe itself .
Introduced with the IIe was the DuoDisk , two 5.25 - inch drives in a single enclosure designed to stack between the computer and the monitor .
The DuoDisk was plagued by reliability problems , however , and did not catch on as well as the IIe   itself .
Introduced with the IIe was the DuoDisk , two 5.25 - inch drives in a single enclosure designed to stack between the computer and the monitor .