Museum

Peripheral Cards - Apple: "Disk II Controller, revised"

This revision of the Disk II controller sold in later years by Apple eliminated the "fried drive" problem by making it impossible to attach the drive cable incorrectly. This design also allowed for "daisy-chain" attachment of Disk II drives, in which the first drive was attached to the computer, and the second drive was attached to the first. This arrangement also decreased radio-frequency leakage from the flat ribbon cables in the original Disk II drive setup.