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a red laser like a CD
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∙ 12y ago
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What color is the laser beam in a DVD drive?
Red - its 650 nanometer wavelength puts it squarely in the middle of the visible light's red spectrum.
What color laser is used in a DVD drive?
its, mostly Infra Red, a colour you can't see.
Does laser beam moves in DVD Player?
No, the disk moves.
Will you be able to watch Blu-ray DVD on your PC with regular DVD drive if you install Blu-ray playing software?
Well the drive has to be a Blu-Ray drive for Blu-Rays require a certain laser in order to play and DVD players do not have that laser, but the Blu-Ray laser can detect and read DVDs
What drive uses laser beams to read data?
A CD ROM or DVD drive
What is a movie DVD?
Digital Video Disc A disc read by a laser beam containing video programming.
What is Lasor Drive in Computers?
The laser drive (optical drive), is the generic term for the CD, DVD or blueray drive. They all use laser light to read (and record) the discs.
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.
How does an optical disk drive work?
An optical disc drive reads a disc by shining a laser on it and detecting the reflected beam. The reflectivity of a disc varies across its surface, which determines the intensity of the reflected beam. Photodiodes detect this reflected beam and produce electrical signals, which are interpreted as data.
What scans the CD?
The laser inside the CD/DVD optical drive does the scanning.
Does a DVD play on the top or bottom?
The DVD is played from the shiny side. This means that the shiny side of the DVD, is what faces the bottom of the DVD player or drive. A laser reads it, and this is how your DVD works
Is laser beam used in RAM CHIP to store data?
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.
