:: The usual definition of disk sector is 512 bytes, not 512 kilobytes .-- contribs ) 10 : 07, 3 January 2008 ( UTC)
12.
Certain efficiencies were gained by careful design, for example, the memory page size, network packet, and disk sector were all 1K byte in size.
13.
This redirected information is no longer referenced once the computer is restarted, thus restoring the system to its original state at the disk sector level.
14.
Still later, magnetic hard disks employed an evolution of LBA where the size of the addressable disk sectors can differ from the physical block size.
15.
It is still possible to create files or directories using these reserved device names, such as through direct editing of directory data structures in disk sectors.
16.
The location and size of the boot sector ( perhaps corresponding to a logical disk sector ) is specified by the design of the computing platform.
17.
This is because the file system rounds the size up to include any unused space left over in the last disk sector used by the file.
18.
Disk realignment is necessary to avoid a performance degrading condition known as cluster straddling where a shifted partition causes filesystem clusters to span partial physical disk sectors.
19.
Typing recover at the DOS FAT and non-directory areas might still contain useful information ( though there might be additional bad disk sectors not recorded in the FAT ).
20.
File size was specified as the number of 128-byte " records " ( directly corresponding to disk sectors on 8-inch drives ) occupied by a file on the disk.
