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Zip Drives, Back-Ups, etc.
Zip drives are
really nothing else but modern floppy drives. The only reason they are not
called floppy drives is because conventional floppy drives can be found in
just about every computer system of any kind all over the world. But just
as all other components within a computer system have evolved throughout
the years, floppy drives have also kept up with time. Today's floppy drive
standards are somewhat divided, but only because as of today there is no
new standard to obey. The most popular modern floppy drive is manufactured
by 'Iomega' and goes under the name of 'Zip drive'. They are available as
external, as well as internal devices.
With about the same
physical proportions as a floppy disk (slightly larger) they can hold up
to 250MB of data. Zip disk are available from around £7.50 and can be
compressed just as any other drive. The big benefit of Zip drives is that
you can run programs directly from them, especially from the faster SCSI
Zip drives. This is because Zip drives do not connect to the computer
system as conventional floppy drives, but as IDE or SCSI devices. In the
hard
drive section I have already mentioned the differences between IDE and
SCSI. Unlike conventional floppy
drives, today's Zip drives are so fast that you can install fully
featured applications on them and run them directly from the Zip disk.
Almost all BIOSes are now able to boot directly from the Zip disk of your
choice and files are backed up quickly and reliably. Zip drive technology
is not much different from that of the conventional 1.44MB floppy drive.
It just stores the data in a more compact format with much tighter
clusters and it is, of course, much faster. Zip drives are still the most
popular backup devices and have been well received all over the
world.
Other
3.5" floppy drives
There are other
promising technologies other than Zip drives. Most famous for its
appearance and almost immediate disappearance again is the 'Sony HIFD', a
150MB floppy disk drive which, for the first time not only offered
acceptable speed and storage capabilities, but more importantly 100
percent backwards compatibility with conventional floppy disks.
Unfortunately the Sony HIFD developed rather harsh read/write crashes and
was therefore withdrawn from the market. The last word, however, is still
to be spoken. If anything, Sony's reputation as a world leading
corporation has taught us that they will be reckoned with. Watch this
space!
Tape
Backup Drives
Tape backup drives
are still in heavy use where speed is of no importance. In contrast with
any other backup and storage medium you might have come across, tape
drives are sequential storage devices in that the data con only be read
from the beginning of the tape to the end, because you cannot just start
reading a reel of tape half way through. Therefore it can take a long
while, by today's standards, until you might find the information that you
are looking for. However, tape backup devices are cheap and still do their
job. With new technologies emerging all the time though, tape backups are
slowly becoming a thing of the past, especially with DVD standards finally
coming together.
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