07 External Memory - MetaLab

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Physical characteristics• Head motion▫ Fixed head• One read write head per track• Heads mounted on fixed ridged arm▫ Movable head• One read write head per side• Mounted on a movable arm
Removable or Not• Removable disk▫ Can be removed from drive and replaced withanother disk▫ Provides unlimited storage capacity▫ Easy data transfer between systems• Nonremovable disk▫ Permanently mounted in the drive
Page 1 and 2: William StallingsComputer Organizat
Page 3 and 4: Magnetic Disk• Disk - a circular
Page 5 and 6: Inductive Write MR Read
Page 7 and 8: Disk Data Layout
Page 9 and 10: Disk Layout Methods Diagram
Page 11: Multiple zone recording (MZR)• To
Page 15 and 16: Multiple Platters
Page 17 and 18: Classification of disk based on hea
Page 19 and 20: Disk performance parameters• The
Page 21 and 22: Optical Storage CD-ROM• Originall
Page 23 and 24: Continue..• Data on CD/CD-Rom is
Page 25 and 26: Other Optical Storage• CD-Recorda
Page 27 and 28: DVD - technology• Multi-layer•
Page 29 and 30: Magnetic Tape• Tape system use th

07 External Memory - MetaLab

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