Hard Disc Drives (HDD) Random Access?

I'm coming across some very stubborn people on YouTube who don't recognize:

1) that HDD are a form of RAM (random access memory) because on a HDD you can start reading wherever you like without having to go though the entire volume like a cassette tape; while there are latencies associated with the position of the sector, they are equally spread out since the computer is likely to access many sectors during its operation;

2) that RAM can be non-volatile, such as magnetic core storage, which retains data regardless of the presence or absence of power.

And just because HDD doesn't act as main storage (the storage from which the CPU directly accesses data) it doesn't mean it isn't memory.

Is there anybody who sees this matter as I do?

3 Answers

  • 4 years ago

    I don't. RAM is accessed by the CPU to run operating systems and programs.

    HDs are simply storage devices...VOLUME...like cardboard boxes stored in a warehouse.

    RAM does not read HDs. An OS program does.

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  • 4 years ago

    Neither do I.

    And I'm sure that the hard drive is the main storage on most computers.

    How can RAM be non-volatile? That's why whenever you turn on your computer, it takes a while to load the system

    You should really learn what RAM and hard drive are.

    • alex yan4 years agoReport


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  • Ryu
    Lv 7
    4 years ago

    No. Because most people just don't care.

    • alex yan4 years agoReport

      Why are you even providing an answer when you don't actually have one?

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