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What is a compact disc that uses the same laser technology as audio CD's for recording music?
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∙ 12y ago
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∙ 12y ago
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Which technology is used in Compact disks?
Laser Technology
What is used to read the audio off of a compact disc?
A CD is read with a laser reflecting off tiny holes burnt into a thin sheet of aluminum.
When was the invention of the compact disk?
The compact disc is a spin-off of the much less successful Laserdisc technology. In 1979, Sony and Philips Consumer Electronics set up a joint task force of engineers to design a new digital audio disc. The task force, led by prominent members Kees Schouhamer Immink and Toshitada Doi, progressed the research into laser technology and optical discs that had been started by Philips in 1977.
Where can someone find a good deal on a compact laser printer?
A good deal on a compact laser printer can be found on the Amazon website. They have a Brother HL2270DW Compact Laser Printer with Wireless Networking and Duplex listed for $109.99.
Which material is used for making CDs?
A compact disc, or CD, is an optical storage medium with digital data recorded on it. The digital data can be in the form of audio, video, or computer information. When the CD is played, the information is read or detected by a tightly focused light source called a laser (thus the name optical medium). This article will focus on audio compact discs, which are used to play back recorded music.The history of the compact disc can be traced back to the development of electronic technology and particularly digital electronic technology in the 1960s. Although the first applications of this technology were not in the recording area, it found increasing use in audio components as the technology evolved.During the same period, many companies started experimenting with optical information storage and laser technology. Among these companies, electronic giants Sony and Philips made notable progress in this area.By the 1970s, digital and optical technologies had reached a level where they could be combined to develop a single audio system. These technologies provided solutions to the three main challenges faced by the developers of digital audio.The first challenge was to find a suitable method for recording audio signals in digital format, a process known as audio encoding. A practical method of audio encoding was developed from the theories published by C. Shannon in 1948. This method, known as pulse code modulation (PCM), is a technique that samples a sound during a short time interval and converts the sample to a numerical value that is then modulated or stored for later retrieval.The storing of audio signals in digital form requires a large amount of data. For instance, to store one second of music requires one million bits of data. The next challenge, therefore, was to find a suitable storage medium to accommodate any significant amount of sound. The solution to this problem came in the form of optical discs. An optical disc can store large amounts of data tightly compressed together. For example, one million bits of data on a CD can occupy an area smaller than a pinhead. This information is read by means of a laser beam that is capable of focusing on a very narrow area as small as 1/2500th of an inch.The final challenge of digital audio was to process the densely packed information on compact discs quickly enough to produce continuous music. The solution was provided by the development of integrated circuit technology, which allow the processing of millions of computations in just micro-seconds.By the late 1970s, a common set of standards for the optical storage discs had been developed by the joint efforts of Sony and Philips. A consortium of 35 hardware manufacturers agreed to adopt this standard in 1981 and the first compact discs and compact disc players were introduced in the market in 1982.
What does CD-RW stand for?
Compact Disc Re-WritableIt describes a Compact Disc that contain materials within it capable not only of recording data burned onto it by a laser but also (with the application of a stronger laser) having that information erased so that the disc can be rewritten. CD-RW discs can usually only be used properly in optical drives that specify that they can read (and usually write) that type of disc.
What technology is used in law enforcement rader?
They use......Radar. that is the name for it. they also use Laser technology called......Laser.
Is a CD drive a storage device that uses laser technology to read data permanently stored on computer or audio CDs?
They're the same thing. When storing audio CD's, the signals are converted to digital then written on a CD or DVD. To the computer, it's just data.
What are the disadvantages of laser technology?
e
What has the author Craig I Willis written?
Craig I. Willis has written: 'An introduction to two thermal processes for high speed reversible laser recording' -- subject(s): Laser applications, Recording, Optical disks
How Does Laser Treatment for Cataracts Work?
Laser treatment for cataracts involves using a femtosecond laser, an ultra-fast and precise laser technology.
What technology is used by laser printers?
electrophotographic
