AT&T 3B2/300 Technical Reference Manual page 205

- - - - - - - - - - - - - - - - - - - - - - - - - - - EQUIPMENT DESCRIPTION
Floppy Disk Drive Equipment Characteristics
Reliability.
Head Life
Error Rates
Physical.
Disk Type
Rotational Speed
Height
Width
Depth
Bytes/Sector
Sectors /Track
Tracks/Cylinder
Cylinders
Formatted Size
Operational.
Interface
Transfer Rate
Latency
Seek Time
20,000 hours
Recoverable (soft) read errors occur less than 1 in 10 9 bits transferred.
Unrecoverable (hard) read errors occur less than 1 in 10
12
bits
transferred.
5.25 inch, double-sided, 96 tracks per inch
300 revolutions per minute
1.625 inches
5.75 inches
8.0 inches
512
9
2
79 Accessible, 80 Total
1422 blocks (512 bytes)
TMlOO (34 pin)
250 kilobits per second (31.25 kilobytes per second)
100 milliseconds, average
3 milliseconds, single track
90 milliseconds, average
EQUIPMENT DESCRIPTION 2-181