Blu-ray disc - The future of the Music and Video World

Blu-ray disc is the future of the Audio and Video media market. Blu-ray disc well known as BD is the more advanced and superior technology than DVD disc. Like CD and DVD, Blu-ray disc an optical disc storage medium designed to store the high-definition video and data. With the same size of CD and DVD, it storage capacity is much higher. A user can store up to 27GB of data or 12 hours of standard video or more than 2 hours of high-definition video in a single-sided single layer Blu-ray disc. In Blu-ray disc, blue laser technology is used to read the disc which provides date to be stored at a greater density than compare to CD and DVD. Since the official launched of the first Blu-ray disc player in the year of 2006, Blu-ray publishers are slowly gaining shares in the market. With the features of high storage capacity and appropriate to play the high definition Audio and Video files, Blu-ray disc are becoming popular among the users. To access the new market of the audio and video media world, most of the companies have now switched over to be the Blu-ray Companies.

USB flash drive - Small drive with high capacity of storage of data

In the modern computer terminology USB flash drive plays a big role for storage and transfer of mass data. USB flash drive is commonly known as Pen Drive because of their looks and size. They also called as Thumb Drives, Flash Drives, Jump Drives, Memory Stick and Key Drives. They are small and portable flash memory devices use to carry and store high mass of data. They are plug and play devices that plug into a PC USB port and function as a portable hard drive. Generally it consists of a flash memory data storage device integrated with a Universal Serial Bus 1.1 or 2.0 interfaces. They are generally removable and re writable.




The physical size of USB flash drive is smaller than a floppy disk. The data storage capacity of these flash drives can vary from 1 GB to as large as 256 GB. The purpose and function of the USB flash drive are same as floppy disks drive. The main feature of USB flash drive are smaller, faster, have thousands of times more capacity, and are more durable and reliable than floppy disks due to lack of their moving parts. These USB flash drives are supported by most of the current operating systems. In these days USB flash drive can store bigger data and transfer faster than a much larger optical disc drive and can be read by many other systems such as play stations, MP3 players, DVD players and Smart Phones.



A flash drive consists of a small printed circuit board carrying the circuit elements and a USB connector, insulated electrically and protected inside a plastic, metal, or rubberized case which can be carried in a pocket or on a key chain. Most flash drives use a standard type-A USB connection allowing plugging into a port on a personal computer, but drives for other interfaces also exist. Most USB flash drives draw their power from the USB connection, and do not require a battery. The vary first Pen Drive or USB Flash drive was produced by the Phison Electronics Corporation in May 2001.

Benefits of USB Flash Drive
A USB flash drive can be useful in many ways like -

* Protection of Data
Data stored on this drives is fully protect from scratches and dust.

* Easy transportation of data
USB flash drive robust making function makes them suitable for transporting data from place to place and keeping it readily at hand.

* Mass data storage
Flash drives also store mass data compared too many removable media.

* Minimum power consumption
These drives use little power as compared to hard drives.

* Operation system friendly
Flash drives implement the USB mass storage device class so that most modern operating systems can read and write to them without installing device drivers.



Drawbacks of USB Flash Drive
Here are the some of the drawbacks of USB flash drive are -
* Limited life time
They can sustain only a limited number of write and erase cycles before failure.

* Vulnerable against Virus
Most USB flash drives do not include a write-protect mechanism which makes them vulnerable against virus attack.

* Misplacement
A drawback to the small size is that they are easily misplaced, left behind, or otherwise lost.


* High cost
Compared to other portable storage devices, USB flash drives still have a high price per unit of storage.

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