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Dvd drive with single layer can store upto ............... of data?
DVD capacity is 4.7 Gb, but there is some overhead, so the useable capacity is more like 4.3 Gb.
What is the storage capacity of a blu-ray disk?
20 to 50 gb(gigabytes) A single layer blu ray disc store 25GB of data and dual layer can store up to 50GB of data
What is the maximum storage capacity of a bluray disk?
20 to 50 gb(gigabytes) A single layer blu ray disc store 25GB of data and dual layer can store up to 50GB of data
What does a double-layer drive mean?
Some DVDs are dual-layered, allowing twice the data to be stored on a single disc. The data is written into an extra layer in the disc itself, not on the back. A double layer-drive is a device that allows the reading and, depending on the model, recording of these discs.
How work optical disk?
We all use optical drives on our computers. However, have you ever wondered how on earth it is possible to store huge amount of data on a CD (compact disc) or DVD (digital video disc) or how an optical drive such as a CD ROM drive works? Read on if you are interested to know. Anoptical disc such as a CD or a DVD has basically 3 layers on it. The non-silvered side is the layer on which you can affix a label on the CD for identification of its contents. It also serves to protect the data on the disc. The middle layer is the reflective layer. It is sandwiched between the non-silvered layer and the silvered layer on the other side of the disc. The reflective layer is the one that stores all the data in microscopic pits in grooves on an optical disc. This is why a slight scratch on the silvered surface of a CD does not entirely damage its property to store and display data. However, what the scratch does is to impede data reading on an inserted CD by blocking the beam of light from a laser on the optical drive. This is also one reason it is recommended for you to use a soft marker for writing the label description on the non-silvered side of the CD. A DVD is an improved version of an optical disc that enables you to store significantly more data on it than is possible to store on a CD. While a CD can store upto 700 MB (megabytes) of data on it, a single layer DVD can store 4.3 GB (gigabytes) of data on it. A double layered DVD can store 8.7 GB of data on it. As opposed to a single layer optical disc which has only one reflective layer, a dual layered optical disc has two reflective layers. The top reflective layer is semitransparent to allow the laser on the optical drive to read the data on the inner reflective layer by a change of focal length. While you use Nero or other burning software to burn the data on the reflective layer on a CD or DVD inserted in the respective CD or DVD writer optical drive, mass-produced commercial software is not burned on optical discs that way because there exists a quicker method. It involves the use of a mold to stamp press the data in pits on the reflective layer in an optical disc. When you insert a data CD or DVD in a CDROM or DVDROM drive, a laser on the optical drive focuses a beam of light on the reflective layer on the optical disk. The beam focused on pits is scattered, whereas that on lands is reflected back with higher intensity and stored in a photo diode array. The diode array is used to read and analyze the data. CDROM optical drive technology is now obsolete and has given way to DVDROM optical drive technology.
What can a USB drive do?
it can store data
Is it better to store data on a DVD or hard drive?
Hard-drives offer greater speed and capacity. Byte-for-byte, DVDs seem better value for money (100 single-layer DVDs can store around 450 GB and will cost about £20 in total, whereas an equivalent size hard-drive will cost around £40) however this cost-saving has to be offset by the inconvenience of having to swap multiple discs compared to hot-swapping a single drive.
How much data does blu-ray disk hold?
25GB single layer, 50GB double layer
Is network drive an example of remote storage?
network drive is a name given to a dive that is shared on a network and the user of that network can acess the drive to store any data . But a remote storage is a technology were you store your data by the technology of web , you dont have to be on the same network to store data as it happens in the network drive.
What is storage device interface?
storage is store a data , device is drive (data drive) eg harddisk pendrive.
What is the function of an external hard drive?
To store data
What does a computer need to store its data?
A hard drive.
