1.2
Hardware Structure
An outer view of the HDD is given in Figures 1.1 and 1.2. The HDD has a disk enclosure (DE)
and a printed circuit assembly (PCA). The DE includes heads on an actuator and disks on a
spindle motor mounted on the DE. The PCA includes a read/write circuit and a controller circuit.
1-6
Figure 1.1
NC model drives outer view
Figure 1.2
NP model drives outer view
C141-E226