screen resolution and why it matters

What is ROM in Mobile Phones and How Does it Work?

    1. ROM stands for Read Only Memory and is often confused with internal storage in mobile phone marketing.
    2. ROM is also known as firmware and it refers to a specially programmed device that is fitted by the manufacturer.
    3. ROM stores the instructions that are required to start the device upon switching on.
    4. Such instructions are permanently stored in the Read Only Memory during the phone’s manufacture.
    5. ROM is different from Internal Storage because you cannot write new information on it.
    6. For internal storage, the act of saving new files like images and videos can be referred to as writing into the phone’s memory.
    7. For ROM, the information can not be retrieved for any other purpose other than the phone system’s background use.


Also read: What is an eSIM and How Does it Work in Cellphones?