What is Volatile Storage Devices With Types, Examples, Advantages, Disadvantages and Functions.


The volatile memory is the crucial and essential memory of any computer system that plays a vital role in computer startup or booting. The volatile memory is more expensive compared to other memory. The computer system consists of internal storage devices and external storage devices. They both are used and utilized for the system’s better and enhanced performance. In this article, we will learn What is Volatile Storage Devices With Types, Examples, Advantages, Disadvantages and FunctionsKeep Reading.

What is Volatile Storage Device?

Volatile memory or storage devices are those that are capable of temporarily storing or holding data and information.

The volatile memory tends to erase or lose data when there is no power or loss of electricity.

The primary example of volatile memory in computers and laptops is considered to be RAM [Random Access Memory]. 

This memory is essential for any computer system, which is responsible for the startup process and data and information sharing.

What is Volatile Storage Devices
What is Volatile Storage Devices

RAM also plays an essential role in computer startup and booting.

The RAM temporarily stores or holds data and information and later transfers it to the CPU for further processing and handling.

The RAM is further categorized into two distinct types.
  1. Static RAM.
  2. Dynamic RAM.

Volatile storage is considered to be faster memory compared to secondary or external memory.

What is Non-Volatile Storage Devices?

The non-volatile memory is considered a permanent storage memory. They do not lose data and information even if there is no power supply; data is not erased when there is a power cut.

Some Examples of Non Volatile Memory are
  • ROM [Read Only Memory].
  • Hard Disk Drives
  • Pen Drives
  • Thumb Drives

Non-volatile memory is less expensive compared to volatile memory. They are capable of holding massive data almost permanently.

The system software and applications software are installed on hard disk drives, considered external storage devices.

This non-volatile memory is slow compared to volatile memory,

Different Types of Volatile Storage Devices and Non-Volatile Memory

#Volatile StorageNon-Volatile Memory
1Random Access Memory [RAM].Computer Hard Disk Drive.
2SDRAMPen Drives.
3DRAMSSD {Solid State Drives}.
4SRAMOptical Disks.
5 EPROMCloud Storage
6EDORAMPen Drives
7DDRSDRAMThumb Drives

Examples of Volatile Memory and Storage Devices

  • Random Access Memory [RAM].
  • SDRAM
  • DRAM
  • SRAM
  • PROM
  • EPROM
  • EDORAM
  • DDR SDRAM

Advantages of Volatile Memory

  • They are compact and can be installed in less space.
  • They are faster memory compared to other memories.
  • Consumes less power compared to non-volatile memory.
  • System performance mainly depends on internal memory, also called “Volatile Memory”.
  • They can read and write data and information given to them for processing.

Disadvantages of Volatile Memory

  • They tend to lose data when the computer system is shut down, restarted, or even if there is a power failure.
  • They can store less amount of data and information.
  • They store data and information temporarily.
  • The data is refreshed frequently.
  • They are expensive.

7 Differences Between Volatile and Non-Volatile Memory or Storage Devices

#VolatileNon-Volatile
1Volatile Memory is a memory that tends to lose data and information when there is no power or electricity. Non Volatile Memory does not lose data and information when there is a power failure or when the computer system is shut down or restarted.
2 Read Only Memory is an example of volatile memory.Hard Disk Drives are an example of non-volatile memory.
3Volatile memory stores data temporarily.Non Volatile memory stores data permanently.
4They have fewer data storing capacity.They have massive data storing capacity.
5Volatile memory is usually installed on PCB [Printed Circuit Board], for example, Computer Motherboard.Non–volatile memory can be connected to the motherboard [Hard Disk Drives].
6They are faster compared to non-volatile memory or storage devices.They are slower than their counterparts.
7They are called “Primary memory”.They are called “Secondary Memory” or “External Memory”.

Different Types of Internal Memory

  • Read-Only Memory [ROM].
  • Random Access Memory [RAM].
  • SDRAM
  • DRAM
  • SRAM
  • PROM
  • EPROM
  • EDORAM
  • DDR SDRAM

Different Types of External Memory in Computer Systems

  • SDD [Solid State Drives]
  • Flash Drives
  • NAS [Network Attached Storage]
  • SAN [Storage Area Network]
  • Cloud Storage
  • Magnetic Tapes
  • Magnetic Disk
  • Hard-Disk
  • Floppy Disk
  • Zip Drives
  • Optical Disk
  • Pen Drives
Examples of Secondary Memory in Computer
Examples of Secondary Memory in Computer
Also Read

12 Differences Between Internal and External Memory 

#Internal MemoryExternal Memory
1Volatile Memory.Non- Volatile.
2Internal Memory is also called “Primary Memory” or “Main Memory” or “Semiconductor Memory”.External or secondary memory is also called “AUXILLARY MEMORY” and “PERMANENT MEMORY.”
3They are installed internally.They are attached using cables and wires.
4Stores small amount of data and information.Capable of storing huge amount of data and informaiton.
5They are faster compared to external memory.They are slower than internal memory.
6Examples of internal memory
RAM (RANDOM ACCESS MEMORY)
ROM (READ-ONLY MEMORY)
Examples of Secondary storage
Computer Hard Disk Drive.
Pen Drives.
SSD {Solid State Drives}.
Optical Disks.
Cloud Storage
7They are very important memory computer system can not boot if absent.The are installed additionallly for better storage capacity.
8They directly interact with central processing unit.They do not directly interact with CPU.
9They are expensive.They are cheaper.
10The internal memory is faster, smaller, and lighter, consuming less powerThey require more power than internal memory.
11Every computer needs a primary memory to work correctlyComputer can function even if secondary memory is absent.
12Their size is measured in MB and GB.Their capacity is measured in GB and TB.

Frequently Asked Questions [FAQs]

Why is RAM Volatile Memory?

RAM is volatile memory. The data and information are erased or lost when the user shutdown or restarts the computer system or even when there is a power failure.

Is Flash Memory Volatile?

Flash Memory is non-volatile memory.

Is SSD Volatile or Non-Volatile?

SSD is a non-volatile memory in nature.

Is Secondary Storage Volatile?

Secondary storage is also called auxiliary storage; it is a type of non-volatile memory used to store data and information and can be retrieved on request.

What are the 3 Types of Storage?

File Storage.
Block Storage.
Object Storage.

Is SSD a Non-Volatile Memory?

Solid-state storage is used as non-volatile memory, also known as NAND flash.

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