Tape drives leverage magnetic technology to store data on a thin and narrow ream of plastic tape. Difficult drives, which continue to rule the roost as primary storage devices for computers and laptops, apply magnetic technology exactly like tape drives on the other hand store data on platters made of metal or glass and offer random access, in contrast to sequential access of the latter. Floppy diskettes that were very popular once are almost extinct now, with most computers shipping from factories without them. For all practical purposes, optical disks - compact disks (CDs) and their bigger cousins digital video disks (DVDs) - have outshone every removable data storage technology to become the undisputed leaders. However, a original type of storage device has hit the market in recent years - USB drives. These offer such phenomenal advantages to users in terms of reliability, capacity and valuation that it seems that soon they are going to unseat the optical disks to b
ecome the removable and much non-removable storage devices of choice for many decades to come. USB drives, as the term states, connect to a machine or laptop through the Universal Serial Bus port to offer or receive data. The USB interface offers very rapid data transfer speeds compared to others. In fact, these drives can transfer data up to 50 times faster than an ordinary exhausting disk. USB storage media is quite small in size, no larger than your miniature finger. This makes them quite portable. Indeed, many of them can be dangled by the end of a key chain! They are also quite light, weighing just a infrequent grams. Why are USB drives so small and light? The answer lies in the technology they utilize to store data. These come in the shape of a tough plastic shell with a USB port jutting gone at one end. Inside, there is nothing on the contrary one small chip that contains flash memory. Unlike laborious drives, USB devices do not have any moving parts or deli
cately balanced components. All data is stored on the flash retention chip by flipping hundreds of thousands of transistors on or off through an electric current. Unlike the random access recall found inside a personal computer CPU, the USB drives can retain their data still when the force gets switched off, since the transistors retain their on or off position. Apart from the flash-memory chip, USB drives have nothing else inside. There are no motors or data-recording platters, as is the process with rigid disks. USB drives offer huge storage capacities compared to their size. The commonly available ones in the market can hold data anywhere from 1 GB to 12 GB. This is more than sufficient for the data-storage needs of most individuals and businesses since there is hardly any record bigness that exceeds this size. Moreover, due to constant research and maturing of technology, the capacities of flash-memory drives are becoming larger and larger. Many companies have rece
ntly launched drives which have a capacity of an amazing 60 GB and more! A prominent laptop manufacturer recently launched a model that has only a flash-memory coerce inside in place of the tough disks. This has many advantages. Not only are flash-memory drives lighter which helps in reducing the overall weight of the laptop, they have no moving parts inside, which reduces electricity consumption drastically. Indeed, already the dense ride manufacturers are in a panic regarding the future of the devices they manufacture. They have hit back by launching hybrid drives, which are nothing nevertheless old-style burdensome drives that have flash-memory built into them to act as secondary memory. Full text: http://computerandtechnologies.com/technology/news_2008-05-11-11-00-06-176.html
Sunday, May 11, 2008
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