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Quantum Plus HardCard

Quantum Plus HardCard

Hard Drive20  MB

Release Date: 1/1/1985
 
 
Quantum's first products were very popular; according to one of the company's historical documents, by 1982 it had a 25% share of the market. It designed smaller ST-506-compatible versions of its hard drives, the Q500 series, using the same servo system. It also introduced (through its Plus Development division) what would be most people's introduction to the company, the Plus HardCard, in 1985. The HardCard was essentially a smaller version of the Q500, designed to fit in an ISA slot, with an embedded controller card bolted to the same frame as the drive. The product sold very well, and inspired several other companies to put hard drives on an ISA-format card; this was not as desirable as the Quantum solution at first, since most 3.5-inch drives in the late 1980s were half-height (1.6 inch/40.6 mm) models and thus could not fit in a single ISA slot. The HardCard was originally introduced in a 10 MB and 20 MB model, with a 40 MB model introduced in 1987; the line ended with the 52 and 105 MB HardCard II XL models (based on the ProDrive LPS 52/105) in 1990. ~ from Wikipedia

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