SmartDrive

SmartDrive (or SMARTDRV) was a disk caching program shipped with MS-DOS versions 4.01 through 6.22 and Windows 3.0 through Windows 3.11. It improved data transfer rates by storing frequently accessed data in random-access memory (RAM). Early versions of SmartDrive were loaded through a CONFIG.SYS device driver named SMARTDRV.SYS. Versions 4.0 and
Found on http://en.wikipedia.org/wiki/SmartDrive
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