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One of the disks in a hard-disk drive or disk pack.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
platterOne of the disks in a hard disk drive. Made of aluminum or glass with a magnetic coating, each platter provides a top and bottom recording surface. There may be only one or several platters in a drive with each platter having its own pair of read/write heads. See magnetic disk.
|A Whole Lotta Platters|
|Although solid state drives (SSDs) have become mainstream, disk platters are likely to be spinning for quite a while. This earlier 5.25" drive with 14 platters held 9GB in total. Today's disk drives have a thousand times as much data in that same amount of platter space. (Image courtesy of Singapore Technologies.)|
|From Spinning Platters to Solid State|
|The tiny Microdrive is history, and hard disk drives will eventually follow suit. See Microdrive and microSD.|
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