Final answer:
Desktop computers commonly use magnetic hard drives as their storage medium, offering ample storage capacity despite slower access speeds.
Explanation:
Most desktop computers use magnetic hard drives to store data. Hard drives store data using a submicron-thin layer of a hard ferromagnet, with data bits stored based on the direction of remanent magnetization. Although slow compared to CPU speed, hard drives offer ample storage compared to RAM, which is faster but more expensive.
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