Toshiba T2100 Series Maintenance Manual page 10

1.3 3.5-inch Floppy Disk Drive
The T2100/T2105 Series 3.5-inch Floppy Disk Drive (FDD) is a thin, high-performance
reliable drive that supports 720 KB (formatted) 2DD and 1.44 MB (formatted) 2HD 3.5-inch
floppy disks.
The FDD is shown in Figure 1-4, and its specifications are listed in Table 1-1.
Storage capacity (KB)
Unformatted
Formatted
Number of heads
Number of cylinders
Access time (ms)
Track to track
Average
Head settling time
Recording track density (tpi)
Data transfer rate (Kbps)
Rotation speed (rpm)
Recording method
1-10
Figure 1-4 3.5-inch FDD
Table 1-1 3.5-inch FDD specifications
Item
Modified Frequency Modulation (MFM)
2 MB mode 1 MB mode
2,000
1,311
2
80
3
181
15
135
500
300
1,000
737
2
80
3
181
15
135
250
300
T2100 Series