Disk pack

Disk packs and disk cartridges were early forms of removable media for computer data storage, introduced in the 1960s.Operator selects a disk packBottom cover is removedDisk pack is ready for insertionThe removable pack is in placeIBM 1311 disk drive with an extra IBM 1316 disk packIBM 2314s with removable disk packs and empty covers on topData General Nova computer with removable disk cartridge Disk packs and disk cartridges were early forms of removable media for computer data storage, introduced in the 1960s. A Disk pack is a layered grouping of hard disk platters (circular, rigid discs coated with a magnetic data storage surface). A disk pack is the core component of a hard disk drive. In modern hard disks, the disk pack is permanently sealed inside the drive. In many early hard disks, the disk pack was a removable unit, and would be supplied with a protective canister featuring a lifting handle.