Present Terminology
Both drums and data cells have disappeared as products, so DASD remains as a synonym of a disk device. Modern DASD used in mainframes only very rarely consist of single disk-drives: most commonly "DASD" means large disk arrays utilizing RAID schemes.
Read more about this topic: Direct Access Storage Device
Famous quotes containing the word present:
“Uncomprehending when they have heard, they are like the deaf. The saying describes them: though present they are absent.”
—Heraclitus (c. 535–475 B.C.)