IO devices and latency — PlanetScale
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Take an interactive journey through the history of IO devices, and learn how IO device latency affects performance.
IO devices and latency Ben Dicken [ @ BenjDicken ] | March 13, 2025 Non-volatile storage is a cornerstone of modern computer systems. Every modern photo, email, bank balance, medical record, and other critical pieces of data are kept on digital storage devices, often replicated many times over for added durability. Non-volatile storage, or colloquially just " disk ", can store binary data even when the computer it is attached to is powered off. Computers have other forms of volatile storage such as CPU registers, CPU cache, and random-access memory, all of which are faster but require continuo
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