Labels:bulletin board | daily | reckoner | sky OCR: Most hard disks contain between one and four platters, which are mounted on rotating spindle The platters are coated on either side with an oxide material that stores data as positive and negative magnetic charges Each surface of the platter can be used tc store data, and before formatted, it can be divided into separate areas called partitions, which can function as they were separate disks Most hard disks are permanently mounted inside the computer and are not removeable Because this, they are ometimes called
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