Actuator The actuator is a hardware component inside the Head Disk Assembly (HDA). The actuator moves the read/write head across the platters. Typically a hard disk has only one actuator that moves all read/write heads simultaneously across the platters. See also: HDA overview image. Comments? Let us know! ATAREF/2 (C) 2007-2009 WTY Soft. All rights reserved (legal). |