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Some differences between RAM and ROM are as follows:

                                       RAM                                                ROM

                 Data is lost when the power is turned off.         Data remains intact even when the power is off.

                 Data can be easily changed, added, or deleted. Data cannot be modified or erased easily.
                 Secondary Memory

                 Secondary storage refers to external storage devices that retain data permanently, even when
                 the computer is powered off. They have larger storage capacities compared to primary storage.
                 You can save your important files, pictures, and games on secondary storage, and they will stay
                 there until you decide to delete them. Some of the commonly used secondary storage devices
                 are as follows:

                    Hard Disk Drive (HDD): A hard drive or hard disk drive (HDD) is a traditional
                    storage device that is  used in laptops and desktop computers. It uses
                    magnetic disks (also called platters) to read and write data.
                                                    Solid State Disk (SSD): A Solid-State Drive (SSD) is a type of
                                                   storage  device  that  uses  flash  memory  to  store  data.  As
                                                   compared to HDD, SSDs  have no mechanical components,
                                                   making them faster, more durable, and less prone to failure.

                    Compact Disc (CDs): It is a small, round storage medium used to store data.
                    There are different types of CDs, such as CD-ROM (for data), CD-R (recordable),
                    and CD-RW (rewritable), allowing users to write or erase data.

                                      USB Flash Drive: It is a small, portable storage device used to
                                      store and transfer data. It connects to computers, laptops, or other devices
                                      using a USB (Universal Serial Bus) port.  They come in different sizes, ranging
                                      from a few gigabytes (GB) to hundreds of GBs.
                    Cloud Storage: It is a type of storage that allows you to save data, like files,
                    photos, and videos, on the Internet instead of using any physical devices like hard
                    drives or USB flash drives. With cloud storage, you can access your data from any
                    device (phone, tablet, or computer) as long as you have an Internet connection.
                    This means you don’t need to carry a physical storage device. Examples of Cloud Storage are
                    Google Drive, Dropbox, Microsoft OneDrive, and iCloud.

                        Boost Bits

                  A bit is the basic unit of memory and represents either a 0 or a 1 in binary code.




                    MEASURING UNIT FOR MEMORY

                 The measuring unit helps us understand how much space is available or used in storage devices
                 like hard drives, USB flash drives, or cloud storage. Just like we measure distance in meters or
                 weight in kilograms, memory is measured in bytes.



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