HD (Hard Drive) Question:
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What you understand by a hard disk and how are they classified?
Answer:
Hard drives are usually devices that can be used for storing data and to retrieve it. They are composed of one or more than one rigid disc that rapidly rotates.
★ The discs are magnetically coated and use magnetic heads to read and write data on them.
★ They are also known as the secondary storage devices used to store large amounts of data.
★ They can be classified into the following types : Non-Volatile, Digital, Magnetic or data storage devices.
★ Hard drives have been dominant since the use of personal computers as they allow large amounts of data to be stored at low costs and high reliability.
★ The discs are magnetically coated and use magnetic heads to read and write data on them.
★ They are also known as the secondary storage devices used to store large amounts of data.
★ They can be classified into the following types : Non-Volatile, Digital, Magnetic or data storage devices.
★ Hard drives have been dominant since the use of personal computers as they allow large amounts of data to be stored at low costs and high reliability.
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