GEMMY High-Speed, High-Capacity Magnetic Disk Memory Unit

The Electrical Communication Laboratories (ECL) of Nippon Telegraph and Telephone Public Corporation (now NTT) aimed to improve the performance and economy of file memory, which accounted for a large share of system cost, and in 1984 started development to increase the capacity and speed of magnetic disk units while developing the DIPS-11/5E Series. In 1986, they achieved practical application of a high-capacity, high-speed magnetic disk unit (commonly referred to as GEMMY: Giga-byte capacity magnetic memory).