What is a sector on a hard disk drive? Group of answer choices A concentric circle on a disk platter. The smallest unit of data storage on a disk platter. A group of tracks on a disk platter. A specific region of the disk controller.
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A hard disk drive consists of platters, which are circular disks that store data, and these platters are divided into tracks and sectors. Show more…
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The hard disk in a computer consists of an aluminum platter coated with a thin layer of a magnetic cobalt alloy. A single magnetic domain in this layer can have its magnetic moment oriented to point either parallel or antiparallel to the direction of rotation, and these two orientations can be interpreted as a binary 0 or $1 .$ Each 0 or 1 is called a bit of information. Hard disks have increased in storage capacity as new technology has decreased the physical size of the magnetic domains. Personal computer hard disks at the time this textbook was printed hold typically 250 gigabytes (GB) of data, where each byte contains 8 bits. A standard hard-disk platter is $9.5 \mathrm{cm}$ in diameter and has a 2.5 -cm-diameter hole in the center for mounting it on the drive. Bstimate the edge length of a magnetic domain on a computer Bstimate the edge length of a magnetic domain on a computer hard disk, assuming them to be square.
Hard disks store and organize files using all the following, except: a. sectors b. cylinders c. tracks d. paths
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'Consider a disk pack with 32 surfaces, 64 tracks and 512 sectors per pack. 256 bytes of data are stored in a bit serial manner in a sector: The number of bits required to specify a particular sector in the disk is'
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