Sunday, March 15, 2015

READERS DRIVES AND BURNERS

READERS UNITS
CD
The CD-ROM allows you to use optical discs for greater capacity 3.5-inch floppy disks: up to 700MB. This is its main advantage, since the CD-ROM have become the standard for distributed operating systems, applications, etc. The use of these units is widespread, and also let you read audio CDs.





DVD:
The DVD-ROM are apparently the same as CD-ROM, you can read both DVD-ROMs and CD-ROM. They differ from the readers CD-ROM in which the support employee has up to 17 GB capacity and speed of data reading. Speed is another issue of the 'x' 12x, 16x ... But now the x refers to 1.32 MB / s. So: 16x = 21.12 MB / s.



BLUERAY:
  It is a device that is mounted on the 5.25 "bays cabinet basically integrates within itself an issuer of special blue laser to read data recorded on a CD data (" Compact Disc "), a DVD (" Disc Digital Versatile ") and DB (" Blu-ray disc "), a motor for rotating the disc tray and place. After reading the data, this unit is also responsible for sending via a cable to the main board (motherboard) to be processed.


BURNER UNITS
CD:
The CD burner is a device that records data or any type of information over an empty optical compact disc. There is also the CD Rom device which only makes the job to read the disc compacto.El CD Rom is an optical disc. The maximum memory that may be stored on a vacuum device is approximately 800 bytes super. The CD burner comes along with playing a serial bus that can be connected to the system and also be a software driver that can be used to burn the Rom.



DVD RW:
You can read and write and record images, audio and data discs several gigabytes of capacity, a capacity of 650 MB to 9 GB.







BLURAY:


The unit opens and closes the tray either by the user for the button that is assigned to it or from the computer software. Once placed the Blu-ray, DVD, HD-DVD or CD and tray inside, an internal mechanism engages the disc with the laser beam and the motor starts turning to read the disc characteristics. This information is sent to the main board and then the operating system, which takes control of the unit to receive data or to send the data to be written to disk. If the computer is not receiving data from BD, CD or DVD, or the unit is not recording, still remain disc rotating at a high speed. The recorder unit only writes when receiving the command from the computer and sends the read data from the disk to the computer when it is ordered.




















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