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What else can I help you with?
Where can you find a laser?
You can find lasers in various devices such as laser pointers, CD/DVD players, barcode scanners, and medical equipment. Additionally, lasers are commonly used in industrial applications, defense systems, and scientific research.
Polycarbonate discs coated with a reflective metal on which data is recorded using laser technology as a trail of tiny pits or dark spots in the surface of the disc are?
Compact discs (CDs) are made of polycarbonate material and have a reflective metal layer where data is stored as tiny pits or dark spots created by a laser. When the CD is read by a laser in a CD player, the pits reflect light differently, allowing the player to interpret the data encoded on the disc.
Who built the first LASER?
The first laser was built by Theodore H. Maiman in 1960 at Hughes Research Laboratories. The laser used a ruby crystal as the gain medium and produced a red laser beam.
How do you store data on a disc?
CDs and DVDs both use a storage technique called optical storage. The data is stored on the discs by burning microscopic holes on the exterior of the disc, invisible to the naked eye. CD and DVD readers then perceive these holes as data and displays it to the user or computer. This is why you "Burn" something onto a CD/DVD.
What is a Laser Compact?
A laser compact is a portable device that emits a concentrated beam of light through the use of a laser diode. It is commonly used for various applications such as pointing, leveling, or measuring distances. Laser compacts are small in size and easy to carry around.
How is a laser used in CD's and DVD's?
a laser is used to read the information on the bottom of the disk
What is the main difference between DVD and CD?
a CD is 700 megabytes and uses an infrared laser. a DVD is about 4.5 gigabytes and uses a red laser commercially Dvd's are for movies and new software and Cd's are used for music and older software
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.
Are CD's and DVD's magnetic?
CD's and DVD's are not magnetic. They are optical storage devices that are read with LASER beams.
What scans the CD?
The laser inside the CD/DVD optical drive does the scanning.
Can you convert CD burner into DVD burner?
No. The laser in a CD burner is too wide to write to a DVD properly.
What color laser beam does a DVD drive use?
a red laser like a CD
Can dvds be used in CD devices explain?
No. There are a number of different reasons. It can range from speed of the drive, and by far the most important reason is that a DVD use a blue laser, and CD use a red laser.
Can DVD's be used in a CD device?
No! The eye is only formatted to TT2 CD device (CD's) U can play CD's in a DVD device.
How are CD and DVD technologies read?
There are micro craters that a laser "reads"
Why CD devices can not read DVD?
I'm not an engineer, but while lasers are used to read both CD's and DVD's, the required laser is different. I suppose it is due to the frequency that the laser is reading. Anyway, DVD's are about 3 times tighter packed than CD's, so the CD's laser can't focus in on the data. This is why if you tried to store a movie on CD (using the CD-i format, for example), you would end up with 3 or 4 CD's compared to one DVD.
What type of laser used in cd and dvd players?
Generally, it's an infrared laser, although some use a visible light laser but those are generally just for playback purposes. The infrared is mainly used for burning disks as well.
