LexBrew
Usage Entry 1479 / 1605 60-second read

SSD vs. HDD

Solid-state storage (no moving parts) versus mechanical hard disk drive.

The comparisoni

✗ Wrong

SSDs spin platters.

✓ Correct

SSDs use flash memory — no moving parts, faster, more expensive per GB. HDDs (hard disk drives) spin magnetic platters under a read head.

The ruleii

SSD = flash. HDD = spinning platter.

SSD: Solid-State Drive — flash memory, no moving parts, much faster random access (typical read 500 MB/s+), more expensive per GB. HDD: Hard Disk Drive — magnetic platters spinning under a head, slower (~150 MB/s), cheaper per GB. Modern laptops use SSDs almost exclusively.

Memory aidiii

Remember it like this

Flash vs spinning.

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