FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -HDD actuator is a device which moves head arm assembly. Its task is, not only to start and secure continuous movement of hard drive head assembly, but also to fully control it. Securing and control of this movement is of crucial importance for performing elementary function of hard drives.

Detailed explanation-2: -The access arm is directed by instructions in the operating system to move the head to a specific track, and the rotation of the platter positions it over the required sector. Also called an “actuator arm” because the actuator is the motor and mechanism that moves the arm.

Detailed explanation-3: -An actuator is the component that moves a hard drive’s heads over the media surface, to read and write data. Each recording head sits at the end of a moving actuator arm. Hard drives today are equipped with a single actuator, which moves all the read-write heads together in synchronous motion.

Detailed explanation-4: -An actuator is an electronic device controlled by a motor that moves the hard drive head arm. In the past, the actuator within a hard drive was controlled by a stepper motor. However, today the actuator is often controlled by a servo motor.

Detailed explanation-5: -Arm-This holds the heads in place, and moves them around the platters when the disk is seeking a track or sector. 5. Actuator Axis-This holds the arm in place-and is another component that, if disturbed, could cause a drive failure.