What was the earliest form of non-volatile computer storage?

The magnetic drum.

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  1. The USB stick
  2. The floppy disk
  3. The magnetic drum ✔

Why: The magnetic drum, invented in 1932, was the earliest form of non-volatile computer storage.

Huh, didn't know that: The magnetic drum, invented in 1932, was the earliest form of non-volatile computer storage.

The dad joke
That drum kept a steady beat of data.
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References

Answer: The magnetic drum. The magnetic drum, invented in 1932, was the earliest form of non-volatile computer storage.

  1. Information technology en.wikipedia.org/wiki/Information_technology
    The earliest form of non-volatile computer storage was the magnetic drum
    Checked 2026-11-07.

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