physical device table

physical device table

[′fiz·ə·kəl di¦vīs ‚tā·bəl]
(computer science)
A table associated with a physical input/output unit containing such information as the device type, an indication of data paths that may be used to transfer information to and from the device, status information on whether the device is busy, the input/output operation currently pending on the device, and the availability of any storage contained in the device.
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