Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

  ◄Memory and Capacity►                          ◄Contents►  ◄Index►  ◄Back►
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Memory Management Utilities
Three memory management device drivers, HIMEM.SYS, RAMDRIVE.SYS and
SMARTDRIVE.SYS, are included in your BASIC package. HIMEM.SYS enables
QBX to use your computer's extended memory. Each time you load HIMEM.SYS
prior to invoking QBX, approximately 60K of the QBX executable code is
stored in extended memory. RAMDRIVE.SYS recognizes and accesses a portion
of RAM, extended memory, or expanded memory as a disk, providing faster
access than floppy or hard disk provide. SMARTDRIVE.SYS creates a disk
cache, using either extended memory or expanded memory, for storing
and managing data accessed most recently and/or data expected to be
accessed next from the hard disk. Reducing the number of accesses
to the hard disk enhances performance of the application and speeds access
to the data stored in the disk cache.
 
  See Also    ◄Using HIMEM.SYS►
              ◄Using RAMDRIVE.SYS►
              ◄Using SMARTDRV.SYS►