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Which of the following is an example of non-volatile memory ?

1. Large Scale Integration (LSI)
2. Random Access Memory (RAM)
3. Very Large Scale Integration (VLSI)
4. Read Only Memory (ROM)

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Correct Answer - Option 4 : Read Only Memory (ROM)

The correct answer is ​Read-Only Memory (ROM).

  • RAM, which stands for random access memory, and ROM, which stands for read-only memory, are both present in your computer.
  • RAM is a volatile memory that temporarily stores the files you are working on.
  • ROM is a non-volatile memory that permanently stores instructions for your computer.


  • Non-volatile memory is a computer memory that can retain the stored information even when not powered.
  • Examples of non-volatile memory include read-only memory (see ROM), flash memory, most types of magnetic computer storage devices (e.g. hard disks, floppy discs, and magnetic tape), optical discs.
  • Volatile memory is computer memory that requires power to maintain the stored information.
    • Most modern semiconductor volatile memory is either Static RAM (see SRAM) or dynamic RAM (see DRAM).
  • In a computer, memory refers to the devices used to store information for use in a computer.
  • The term primary memory is used for storage systems that function at high speed (i.e. RAM), as a distinction from secondary memory, which provides program and data storage that is slow to access but offers higher memory capacity.
  • If needed, primary memory can be stored in secondary memory, through a memory management technique called “virtual memory.”
  • An archaic synonym for memory is storage.​​​

  • This is also called Large scale Integration.
  • Large-scale integration (LSI) is the process of integrating or embedding thousands of transistors on a single silicon semiconductor microchip.
  • LSI technology was conceived in the mid-1970s when computer processor microchips were under development.
  • This is also called Very Large scale Integration.
  • Very-large-scale integration (VLSI) is the process of creating an integrated circuit
  • IC by combining millions of MOS transistors onto a single chip.
  • VLSI began in the 1970s when MOS integrated circuit chips were widely adopted, enabling complex semiconductor and telecommunication technologies to be developed.

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