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Apple Computing Products:
macOS - Operating System
"Your computer has restarted because of a problem"
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<blockquote data-quote="cwa107" data-source="post: 1510693" data-attributes="member: 24098"><p>Because they are mechanical in nature, with lots of moving parts. All mechanical devices fail - it's not a question of "if", but "when". They're also subject to magnetic desensitization on the surface where the data is stored (the actual "disc" part). And finally, they're hermetically sealed and sometimes the seal breaks down. Something as small as a particle of smoke could cause the heads to be fouled.</p><p></p><p>I would echo chscag's comments - I've had hard disks run for many years - I've also had them fail within weeks, months or dead on arrival. This is why backups are so crucial. It's also why the industry is moving toward solid state drives (SSD), which should prove to be more reliable.</p></blockquote><p></p>
[QUOTE="cwa107, post: 1510693, member: 24098"] Because they are mechanical in nature, with lots of moving parts. All mechanical devices fail - it's not a question of "if", but "when". They're also subject to magnetic desensitization on the surface where the data is stored (the actual "disc" part). And finally, they're hermetically sealed and sometimes the seal breaks down. Something as small as a particle of smoke could cause the heads to be fouled. I would echo chscag's comments - I've had hard disks run for many years - I've also had them fail within weeks, months or dead on arrival. This is why backups are so crucial. It's also why the industry is moving toward solid state drives (SSD), which should prove to be more reliable. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
"Your computer has restarted because of a problem"
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