[ The PC Guide | Systems
and Components Reference Guide | CD-ROM Drives | CD-ROM Interfaces and Configuration ]
CD-ROM drives really do not use any system resources other than those that are used by
their interface. If you require the addition of an interface (such as an IDE controller or
a SCSI host adapter) then you will of course "spend" the resources that the
interface requires. If you decide to slave an ATAPI CD-ROM drive off an IDE hard disk,
then of course you are using the existing interface and there is no resource usage
cost.The CD-ROM drive itself doesn't use any resources of the PC, except for a bit of
memory for the driver.
For more information on resource usage with the IDE/ATAPI interface see here, and for SCSI, here.
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