| The hard drive is the single most important device
behind the mass acceptance of personal computers in the home
and workplace. Hard disk storage capacity has increased massively
since the early days of the technology, and will likely continue
to increase in the future. Unfortunately, the underlying
technology of hard drives has changed little in the years
since their invention, meaning that their essential weakness
still exists. The simple fact is that hard disks are mechanical
devices with moving parts, and as such, will fail eventually
and inevitably.
Most computer components, of course, are completely electronic
with no moving parts. As such, they have an indefinite lifespan.
They do fail, but they don't wear out. Something has to cause
them to fail, like a power surge or the like.
Hard drives, even in a controlled environment, will wear
out and fail in a fairly predictable time period.
This is the reason that every business blessed with competent
tech workers makes frequent backups of its essential data.
Because hard drives die often, and often with little warning.
Hard drive companies are some of the best in the business
at honouring their warranties and replacing defective products,
but none of the manufacturers take even the slightest responsibility
for data lost on a failed drive.
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