Compaq Portable 486 - Notebook PC Dokumentacja Pobierz pdf (Strona 6)

Drives Supported One One

Form Factor 3 1/2 inch 3 1/2 inch

Drive Height 1 inch 1 inch

Drive Weight 1.3 lb 1.3 lb

Drive Type (logical) 51 50

Drive Speed 4500 rpm 3399 rpm

Transfer Rate (per second)

Head 20 MB 12 MB

Buffer (max) 5 MB 4.5 MB

Sector Interleave 1:1 1:1

Seek Times

Track to Track 3 ms 8 ms

Average 12 ms 19 ms

Maximum 30 ms 35 ms

Cylinders

Physical 2119 1522

Logical 683 760

Read/Write Heads

Physical 4 4

Logical 16 8

Sectors Per Track

Physical 49 40

Logical 38 + 1 spare 39 + 1 spare

Bytes Per Sector 512 512

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1 2 3 4 5 6 7 8 9 10 11 ... 87 88

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Compaq Portable 486 - Notebook PC Dokumentacja Strona 6