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Yes, a Blu-Ray device is an optical reader.
CD's, DVD's, and Blu-Rays are called Optical Devices because the reader looks at the disks using light. The light is a laser.
Just like a DVD, a Blu-Ray uses a laser beam to light up and read the information on the disk. This is like an old record needle running along a record groove and reading the information. However, the laser used by CD's, DVD's and Blu-Rays does not touch the disk. It just lights it up.
The difference between DVD's and Blu-Rays is the colour of laser. DVD's use a red laser light, Blu-Rays use one that is blue. Different coloured laser beams read different sizes. Writing and reading on a DVD with a red laser beam is like using a crayon, a blue beam is like a sharp pencil. The Blu-Ray is an optical device, just like a DVD, but because it uses a "finer pencil" it can put more information onto the disk.
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Who invented the optical disk?
David Gregg was the inventor of the optical disk.
What is a optical disk?
it is a CD(Compact Disk) and a DVD (Digital Video Disk)
Which disk format did HD DVD loose out to?
bluray
What is used to store information on a diskette?
There are several mass storage mediums that may be described as a disk (or disc), including floppy-disk, hard-disk and optical disc (CD-ROM, DVD, BluRay). Solid-state drives such as flash drives are not disks; there are no moving parts.
What do you call the subdivision of a track on magnetic disk or optical disk?
A sector
5 optical types of discs?
# Hard Disk Drive (HDD) # Floppy Disk # CD Disk # USB Disk # SD Card
What type of media is a hard disk?
optical
What part of the computer reads an optical disk?
The disk drive
When was the optical disk invented?
1965
What is a type of optical storage media that consists of a flat round portable disk made of meta plastic and lacquer?
Optical disk
What is an optical storage medium such as a CD or DVD?
An Optical Disk
What are the limitations of optical disk?
(a)- it is a read-only storage medium. Data once recorded, cannot be erased, and hence the optical disk cannot be reused. (b)- thd data access speed for optical disk is slower than magnetic disks; (c)- optical disk require a more complicated drive mechanism that magnetic disk.
