Read/Write Heads 2
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Chapter 1.5 FIXED DISK DRIVES
COMPAQ SLT 386s/20 Personal Computer
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120 MEGABYTE 60 MEGABYTE
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Standard Configurations Model 120 Model 60
LED Indicators Orange Orange
Formatted Capacity Per Drive 121.56 MB 60.7 MB
Drives Supported One One
Drive Height Third Third
Drive Size 3 1/2 inch 3 1/2 inch
Drive Type 50 55
Transfer Rate (Mb/s) 12 12
Sector Interleave 1:1 1:1
Bytes Per Sector 512 512
Sectors Per Track:
Physical 40 39
Logical 39 39
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120 MEGABYTE 60 MEGABYTE
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Number of Surfaces:
Physical 2 2
Logical 4 4
Tracks per Surface 1053 636
Access Times (including settling):
Track to Track (ms) <5 <5
Average (ms) <19 <19
Maximum (ms) <35 <35
Physical Cylinders 1522 1522
Physical Read/Write Heads 4 2
Logical Cylinders 760 760
Logical Read/Write Heads 8 4
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