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Computer - Read Only Memory (ROM)

💾ROM: The Permanent Architecture of Computer Memory This video describes *Read Only Memory (ROM)* as a vital, *non-volatile* form of computer storage that retains critical data even without electrical power. It explains how ROM serves as the "brain" of a device by housing *essential instructions* like the BIOS, which are necessary for the *boot-up process* and hardware initialization. The source outlines several iterations of the technology, ranging from *permanent MROM* to modern, flexible options like *EEPROM and Flash memory* that allow for electrical rewriting. Furthermore, it highlights the *mechanical operations* of memory cells and the distinct advantages of ROM, such as its **reliability, cost-effectiveness, and data integrity**. Finally, the text provides a comparative analysis between **ROM and RAM**, distinguishing their roles in permanent versus temporary data handling.