View inside a computer hardisk IDE hardrive
A motorised series of magnetic discs on which you can store computer data The term hard is used to distinguish it from a soft or floppy disk Hard disks hold more data and are faster than floppy disks A hard disk for example can store up to more than 200 gigabytes whereas most floppies have a maximum storage capacity of 1 4 megabytes A single hard disk usually consists of several platters Each platter requires two read write heads one for each side All the read write heads are attached to a single access arm so that they cannot move independently Each platter has the same number of tracks and a track location that cuts across all platters is called a cylinder For example a typical 84 megabyte hard disk might have two platters four sides and 1053 cylinders In general hard disks are less portable than floppies although it is possible to buy removable hard disks
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Keywords: computer, disk, drive, eide, hard, hardisk, hardrive, head, ide, platten, read, read-write
