Hard Disks
How does a hard disk work?
p. 357 Fig. 7-14
Next
Step 1.
Circuit board controls movement of head actuator and a small motor.
Circuit board controls movement of head actuator and a small motor.
Step 2.
Small motor spins platters while computer is running.
Small motor spins platters while computer is running.
Step 3.
When software requests a disk access, read/write heads determine current or new location of data.
When software requests a disk access, read/write heads determine current or new location of data.
Step 4.
Head actuator positions read/write head arms over correct location on platters to read or write data.
Head actuator positions read/write head arms over correct location on platters to read or write data.
