Quantum

Quantum was founded from designers and executives Shugart Associates, IBM and Memorex. They came up with the eight inch drive. The idea of the product was to achieve very good performance without costing much on full closed servo system.

The Q500 series was the most popular of Quantum. In 1982 it had a market share of 25%. Later on Quantum was also started to develop SCSI hard drive. The product was released in 1986, it was the Q280 drive. Further developing resulted to ProDrive. A combination of Q500 series and Q280 series technology were used in prototyping it. ProDrive supports the ATA interface.

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