Because it is fixed in the system unit, it is also known as a fixed disc. The Internal hard disk is a kind of an internal magnetic disk. There are broadly two types of Hard Drives, which are- Internal and External. Hard drive manufacturers boost capacity by stacking platters in the same disc because each platter can only hold so much data. While it must be entirely sealed inside the hard drive enclosure to protect the platter from even microscopic dust, the hard drive would resemble a miniature phonograph player with tonearm if it could be seen.īecause practically all hard drives are made up of a series of platters, a hard drive could be compared to a stack of miniature phonographs. Each platter contains a head that rotates quickly back and forth across the platter, reading and writing data as needed via magnets. Traditionally, a hard drive consists of a collection of spinning metal platters. Regardless of whether your PC is turned on or off, the device keeps your applications and data safe. With the need for increased storage capacity in our computer systems for various reasons, a hard disk has become an essential component.
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