Chapter 17: Outside the CPU: Secondary Storage
Index of Figures
Fig 17.2.1................Hard disks, several different views
Fig 17.2.2................The electromagnetic in the read-write head
Fig 17.2.3................Writing 1's and 0's onto the platter's surface
Fig 17.2.4................Stepper motor and tracks on the platter surface
Fig 17.2.5................Sectors
Fig 17.3.1................Clock drift causes the receiver to skip an entire bit
Fig 17.3.2................Manchester encoding builds in its own synchronization; A sequence of 1s introduces a change ever bit slice. 1 followed by 0 would have two time half-bits at the same level, but there would never be three half-bits at the same level
Fig 17.4.1................Main CPU communicating to disk drive controller via device driver software
Fig 17.6.1................Storing files in consecutive sectors under contiguous allocation
Fig 17.6.2................Several files stored as linked lists of sectors; Only the beginning of the linked list for file 1 is shown
Fig 17.6.3................A cylinder is an imaginary grouping of all the tracks at the same distance from the center of the disk drive on all the surfaces