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No, RAM is a form of computer memory that is an integrated circuit, which uses electricity to read and write data. A laser beam IS used in CD/DVD drives though, where the laser detects differences in distance from tiny pits on the surface of the disc representing data.
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∙ 11y ago
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A beam of light used to record and retrieve data on optical disks is known as?
laser
Can a hard disk involve the use of a laser beam to read data from a disk surface?
yes
How do cell phone store data?
they have a micro chip and memory card
Which storage device uses laser beams to read and write?
Laser beams are used to read and write data on CDs and DVDs. Apart from writing on these disks, the laser beam can also be used to erase the data stored or even overwrite the data stored with fresh data depending on the type of disk used.
Is modulation needed for digital data transmission?
Modulation is only required if the data is being sent over a radio wave, or a laser beam. And even in the case of a laser, if you are content with on/off data streams, then there is no underlying signal to be modulated. Essentially all of the data whizzing round in your computer is doing so without the benefit(?) of a carrier - the wires are sufficient.
What chip converts serial data to parallel data?
serial chip
How can you put music on your micro chip from your computer?
The micro chip is assumed to be inside a device. To upload music directly into a micro chip would be impossible. If the micro chip in a device was built to store data you simply have to send the music into your device. Usually, devices that can store data are pendrives, MP3,MP4 players, cell and smartphones. Sorry, but your question is not so clear. May be you are talking about micro card.
How a pen drive store data?
it is what is known as eprom it basicaly stores information by programming a read only chip
Two characteristics give a DVD more storage than a CD?
The DVD uses a different laser with a smaller wavelength, not the long wavelength red laser that is used for CD's. I believe the DVD laser is in the ultraviolet spectrum. Anywho, the smaller laser allows the DVD to have smaller "bumps" (which is what the laser reads). Since they are smaller, more can fit onto a disk. Also, DVD's can be 2-layer. Twice the data.
In technology what does L2 cache refer to?
In technology, L2 cache refers to small parts of a computer's main processing chip devoted to memory. When working with data, the chip uses the L2 cache to store frequently used data or instructions.
How is data read from a CD-RW?
Any kind of data are stored on surface of CD or DVD in binary code ( 0100101010101) which is lot of zeros and ones. When this data are "burned" on surface of CD or DVD laser burns holes into it. The holes represents "1" and the empty space between represents "0" . So when laser reads surface of CD it basically translating binary code into your music, film or anything else what you stored.
Which side of a DVD plays?
Well, neither of them "plays" but I still get the question. The data is actually on a thin metal like surface in the center. A laser beam detects nothing more than pits. Like 100111000111001000 CPU language. Either there is a pit or not. This happens when the light from the laser beam is bounced off the "bottom" of the disc.
