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Question

Which is the primary memory of a computer?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
RAM

The question asks to identify the primary memory of a computer from the given options.

Primary Memory Identification

Primary memory, also known as main memory or internal memory, is the memory that the computer's CPU can access directly and quickly. It holds data and instructions that are currently being used.

Analyzing Computer Memory Options

  • RAM (Random Access Memory): This is a type of volatile primary memory. The CPU uses RAM to store data it needs to access quickly while running applications. It is volatile, meaning its contents are lost when the power is turned off.
  • DVD (Digital Versatile Disc): This is an optical disc storage medium used for storing data. It is a form of secondary memory (or external storage), not primary memory, because it's slower and not directly accessed by the CPU for active processing.
  • USB (Universal Serial Bus) Drive: This is a portable flash memory storage device. Like DVDs, USB drives are considered secondary memory, used for long-term storage and transferring files, not for active processing by the CPU.
  • CD (Compact Disc): Similar to DVDs, CDs are optical discs used for data storage. They are classified as secondary memory or external storage.

Conclusion on Primary Memory

Based on the definitions, RAM is the only option listed that functions as the computer's primary memory. The CPU directly interacts with RAM for active tasks, making it essential for the computer's immediate operation.

Therefore, RAM is the primary memory of a computer.

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Similar Questions

  1. Which of the following is an example of non-volatile memory?:
  2. Which of the following is NOT a property of ROM (Read Only Memory)?
  3. 100 nibbles are equal to ______ bits.
  4. Which among the following is the largest unit of memory of a computer system?
  5. 1 EB is equal to ________.
  6. Where is the cache memory located?
  7. Which of the following is a volatile memory?
  8. Non-volatile memory is a type of computer memory that can retain stored information even when the computer is:
  9. In a computer system, a running program stores currently required data in RAM. What does RAM stand for?

  10. Consider the following statements regarding RAM and ROM and select the correct option.

    (i) ROM is faster than RAM because it stores permanent system instructions accessed less frequently by the CPU.

    (ii) RAM can be read from and written to by the CPU, but its contents are erased when the power is turned off.


Important Questions from Memory

  1. One Exabyte is equal to ______.

  2. Which of the following needs to be refreshed to retain data even when power is on (electric current flows)?

  3. Which of the following has the highest storage?

  4. Which storage medium has tracks and sectors?

  5. The actual timing signals that govern the transfer of data between input unit, processor, memory and output units are generated by the ________ and the ______ stores the processed data.

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