( ), .
, .
. (Average Access Time) , , . () 811 . , . . . , , Norton SI, Checkit.
, , , .
(Rotational Speed, Spindle Speed) , (RPM Rotational Per Minute). , . 5400 7200 /. (10000 / ) SCSI-. .
, . , Seagate.
5400 / . 7200 / . 10 000 / .
, , . ( - ).
, , Quantum , , .
(Internal Data Rate) (Media to Buffer). . 200 /, 20 /. , 1012 /. . , , , . , , Norton SI.
(Data Transfer Rate Buffer-to-Host) (Host). , ( ). , .
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(Track-To-Track Seek Time) ( ) , . . 1,53 .
. (Shock resistance). . , , (g 9,8 /2), .
: . . 10 g 100 g . 10 70 g.
. Quantum Shock Protection System (SPS), .
SMART. : S.M.A.R.T. Self Monitoring Analysis Reporting Technology .
, , (, , ..) . firmware-. . BIOS (, ). , . , ( ) .
Compaq IntelliSafe. SMART II, -2 (EIDE).
SMART , . , . Data Lifeguard Western Digital. , .
(Mean Time Between Failure, MTBF) . 300, 400 500 , 800 .
, , . . ( 5 ), /.
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, 4050 .
, .
. . 14 ( ). , , : -, ; -, , , . 2,5 .
(Buffer Size). DRAM. , .
, , .
. 128 , 512 , IDE- ( SCSI).
. GR, MGR, .
80- ( ). .
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