Toshiba T1200 - 1.4 Hard Disk Drive

1.4 HARD DISK DRIVE
The hard disk drive (HDD) is random access storage, having
recording capacity of 20 Mbytes. This is equipped with the
storage media of non-removable 3.S-inch magnetic disks and
mini-winchester type magnetic heads.
The specifications are as following table.
FIGURE 1-4 3.5-inch Hard Disk Drive
TABLE 1-3 3.5-inch Hard Disk Drive Specifications
Item
Specifications
Storage Capacity (megabytes)
25.3
(unformatted)
21.4 (formatted)
Number of Heads
2
Number
of Track per Side
615
Access Time (milliseconds)
(minimum)
24
(average)
78
(maximum)
130
Data Transfer Rate (megabits per second)
7.5
Rotational Speed (revolutions per minute)
2597
Recording
Method
2-7 RLL (Run length limited)
1-7