430 Series
1.4 2.5-inch Hard Disk Drive
The Hard Disk Drive (HDD) is a random access non-volatile storage device. It has a non-
removable 2.5-inch magnetic disk and mini-winchester type magnetic heads.
The 430 series supports the 1.3 billion byte (1.26GB) HDD which is shown in Figure 1-5.
Figure 1-5 2.5-inch HDD
Specifications for the HDD are listed in Table 1-2.
Table 1-2 2.5-inch HDD specifications
Toshiba IBM Seagate
Items MK1301MAV DMCA-21440 ST91350AG
Formatted capacity (byte) 1,358,880,768 1,445,068,800 1,350,107,136
Number of disks 3 2 3
Logical heads 16 16 16
Logical cylinders 2,633 2,800 2,616
Bytes per sector 512 512 512
Rotation speed (rpm) 4,200 4,000 4,500