With external hard drives containing much the same expertise
as that inside a desktop or laptop computer, their susceptibility to accidental
or even malicious destroy is obvious. With platters, spindles & read &
write heads amongst the moving parts, there is a lot that can go wrong if ought
to be dropped on a hard floor. There is also the headache of losing all of the
knowledge on the drive ought to catastrophe occur.
USB sticks, with their ever-increasing capacity &
reduction in cost, are increasingly replacing magnetic hard disk transportable
drives as the preferred choice of users. Their comparatively simple design
belies the capability available, being not over a small printed circuit board
& an electrically insulated USB connector, all protected by a metal,
plastic, or rubber case.
This design, with a distinct lack of moving parts, gives the
USB stick lots of benefits over other external hard drives. For a start, they
need small power & this, coupled with the shortage of any motion, means
small heat is produced. USB Sticks also keep the stored knowledge free from
dust & related scratches, are not vulnerable to strong magnetic fields,
shock, or vibration & don't suffer from the fragmentation that occurs when
clusters of files on a hard disk are not physically located next to each other.
There is been some fascinating experiments carried out to
check the durability of positive specially designed USB sticks including submerging
them in water. TV's Gadget Show even managed to successfully retrieve knowledge
from that had been cooked, frozen, dipped in acidic liquids, run over by a
vehicle, & at last fired against a wall.
With an already established reputation for durability &
the continuing advances in design, newer versions are now being produced with
much higher estimated lifetimes. Therefore, some manufacturers are now able to
offer warranties of years or more, which brings USB sticks in to consideration
for operations that have historically in the past necessary a magnetic disk.
The advantages of USB sticks in respect of convenience,
size, weight, & flexibility have always been evident. The sheer ability to
be able to carryover around a substantial amount of stored knowledge on the
finish of a key ring was time the stuff of dreams. The fact that they are also
robust & able to resist the kind of treatment that would render a magnetic external
hard drive useless is another reason to make use of them.
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