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________ controller is the interface that enables the computer to read and write information to the hard drive.
1. PC card
2. Floppy disk
3. Hard disk
4. Direct memory access

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Correct Answer - Option 3 : Hard disk

The correct answer is Hard disk.

  • Hard disk
    • The hard disk controller is the interface that enables to read and write information on the hard drive.
    • A hard disk controller (HDC) is an electrical component within a computer hard disk that enables the processor or CPU to access, read, write, delete and modify data to and from the hard disk.
    • A hard disk controller's primary function is to translate the instructions received from the computer into something that can be understood by the hard disk and vice versa.
    • Hard disk allows the computer or its processor to control the hard disk.
    • It consists of an expansion board and its related circuitry, which is usually attached directly to the backside of the hard disk.

  •  PC card
    • The PC Card is a standard for the peripheral interface for laptop/notebook computers.
    • PC Cards are defined and developed by the Personal Computer Memory Card International Association(PCMCIA), a group of industry organizations in the U.S
  • Floppy disk
    • A floppy disk drive, or floppy drive, is a hardware device that reads data storage information.
    • Floppy disks are now outdated and have been replaced by other storage devices such as USB and network file transfer.
  • Direct memory access
    • A direct Memory access Controller is a hardware device that allows I/O devices to directly access memory with less participation of the processor.
    • DMA controller needs the same old circuits of an interface to communicate with the CPU and Input/Output devices.

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