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RAM vs. ROM. Form 3 Computing Storage Devices. Introduction. A computer uses two types of storage. A main store consisting of ROM and RAM, and backing stores which can be internal, e.g. hard disk, or external, e.g. a CD or USB flash drive . ROM and RAM

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RAM vs. ROM


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    1. RAM vs. ROM Form 3 Computing Storage Devices

    2. Introduction A computer uses two types of storage. A main store consisting of ROM and RAM, and backing stores which can be internal, e.g. hard disk, or external, e.g. a CD or USB flash drive. • ROM and RAM Main store (or computer memory) is divided into Read Only Memory (ROM) and Random Access Memory (RAM).

    3. ROM ROM is memory that cannot be changed by a program or user. ROM retains its memory even after the computer is turned off and therefore, it is non volatile. For example, ROM stores the instructions for the computer to start up when it is turned on again.

    4. RAM RAM is a fast temporary type of memory in which programs, applicationsand dataare temporarily stored. If a computer loses power, all data stored in its RAM is lost. This makes RAM volatile.

    5. Major differences between RAM and ROM (1)

    6. Major differences between RAM and ROM (2)

    7. Major differences between RAM and ROM (3)

    8. Major differences between RAM and ROM (4)

    9. Sources • http://www.diffen.com/difference/RAM_vs_ROM • http://readanddigest.com/difference-between-ram-and-rom/ • http://www.bbc.co.uk/schools/gcsebitesize/ict/hardware/1datastoragerev1.shtml