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  Hard Disk Drives

  Computers(PC) rely on hard disk drives (HDDs) to store data permanently. They are storage devices wont to save and retrieve digital data which will be needed for future reference. Hard drives are non-volatile, which means that they preserve data even...

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  Keyboard

  AT keyboard AT port keyboard was widely used in personal computers till 2005. After the development of (Personal System/2)PS/2 port this type of keyboard being obsolete. If you’ve got unspecified P3 or P4 desktop in your garage, go and ch...