Univac 9000 Series disk cartridge 2.2Mb

univacDisk

Univac 9000 Series disk cartridge prototype with a 2.2 MB capacity 1966.
“1966 Univac 9000 Series disk cartridge prototype, 2.2 MB capacity. Considered too expensive at the time, the technology used to develop this ended up as Univac’s 8400-series disk pack, which held four platters in a large removable drop-in cartridge the size of a washing-basket – the first removable disk based storage system to reach market, in 1971.”