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Both are used to encode binary data that can be read back and decoded. In order to encode binary data, you need to be able to represent two opposing states. In the case of magnetic media, clusters of particles on the ferromagnetic material are polarised (positively and negatively). In the case of optical media, a sequence of long and short grooves are "burned" into the substrate with a laser. However, in both cases, the opposing states do not represent actual binary digits because it would be impossible to differentiate two consecutive bits with the same state. Moreover, timing information must be encoded into the data stream to prevent synchronisation errors. Both problems are addressed by using the transitions from one state to the other (flux transitions) rather than the states themselves. Timing is typically achieved using an encoding such as RLL (1,7) which maps two bits of data to a three bit value which is then encoded in groups of 2 or 4 bits.
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What is the difference between technology and media?
not much media is moves and video
What is the difference between Traditional Media and New user driven media?
Traditional media is a media in which electronics equipment has not to be used by audience, in electronics media they require such instruments like radio, tv, computer etc to get the information.
A dick platter of a hardrive can be read by a CD drive?
First off, your sentence has 13 words in it, you should be able to spell all of them correctly. Hard drive is written as two separate words as well.Hard drive platters are magnetic media, CDs are optical media, one cannot read or write to the other.
What physical storage media holds program variables during execution?
Memory (RAM) usually What holds program variables during execution, but any storage medium can be used to store variables, including magnetic, optical and solid state drive.
What is a type of media capable of storing digitized data and that uses a laser to write data to it and read data from it?
Optical media.
What is the difference between portable media and optical media?
Portable means easy to carry round, Optical means uses light to make it work. So optical media could be portable.
How many people did the U.S. magnetic and optical recording media industry employ in 1997?
The U.S. magnetic and optical recording media industry employed 20,869 people in 1997
What did the magnetic and optical blank media industry earn in 1997?
The U.S. Bureau of Census reported that the magnetic and optical blank media industry earned revenues in excess of $5.9 billion in 1997
When did the magnetic and optical recording media industry begin?
The magnetic and optical recording media industry is a modern phenomenon, its emergence stemming from technological advancements that began following World War II
What does the magnetic and optical recording media industry do?
The magnetic and optical recording media industry manufactures blank audio and video recording tape, computer tape, and both rigid and floppy computer disks
How many people did the U.S. magnetic and optical recording media industry employ in 2000?
In 2000, the U.S. magnetic and optical recording media industry employed over 36,000 people. This number has since declined due to changes in technology and consumer preferences.
Records stored on magnetic or optical media must be accessed using a?
Microfiche
What is the maximum storage on the magnetic media?
Magnetic storage optical storage solid-state storage storage capacity
How many U.S. companies were involved primarily or exclusively in the manufacture of magnetic and optical recording media in 2000?
By the end of the twentieth century, approximately 241 U.S. companies were involved primarily or exclusively in the manufacture of magnetic and optical recording media
Why magnetic media is suitable for multimedia applicatiion?
Magnetic media like a hard disk drives are fairly fast so it is suitable for multimedia applications. Optical media like DVDs and CDs are much slower.
What is the four storage devices and the the approximate size of each?
One storage device is RAM. Also Magnetic Media, Flash Media, and Optical media. Your welcome :)
What affects the angle of refraction?
The angle of incidence.The difference in the optical densities of the media.
