26, 27
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- . : , , HDD (Hard Disk Drive). , , , , . (, ), . ( ) . 0,5-0,13 . (4500-10000 /), .
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. , (track). . , . ( ). 571 : 512 , (), (), , . . . . . , , .
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, HDD :
- EIDE 4500-7200 /, SCSI - 7500-10000 /;
- - -, ; , , - , ( ); - 64 2;
- ( ), . 10-13 ;
- , , ;
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- , ; , : PIO DMA; PIO , PIO, ; DMA (Direct Memory Access) ; 30-60 /.