[24hoursupport] Re: The Myth Of The 100-Year CD-Rom

  • From: "Gene" <Build_A_Computer@xxxxxxxxxxxxx>
  • To: <24hoursupport@xxxxxxxxxxxxx>
  • Date: Mon, 7 Feb 2005 20:53:24 -0500

Hi Ray,

Good question!  Now you got me searching.  A search at www.amazon.com in 
"electronics" for "optical discs" comes up with CD changers, CD's etc.

I went to www.whatis.com and did a search for "optical discs".  Search 

An optical disc is an electronic data storage medium that can be written to 
and read using a low-powered laser beam. Originally developed in the late 
1960s, the first optical disc, created by James T. Russell, stored data as 
micron-wide dots of light and dark. A laser read the dots, and the data was 
converted to an electrical signal, and finally to audio or visual output. 
However, the technology didn't appear in the marketplace until Philips and 
Sony came out with the compact disc (CD) in 1982. Since then, there has been 
a constant succession of optical disc formats, first in CD formats, followed 
by a number of DVD formats.
Optical disc offers a number of advantages over magnetic storage media. An 
optical disc holds much more data. The greater control and focus possible 
with laser beams (in comparison to tiny magnetic heads) means that more data 
can be written into a smaller space. Storage capacity increases with each 
new generation of optical media. Emerging standards, such as Blu-ray, offer 
up to 27 gigabytes (GB) on a single-sided 12-centimeter disc. In comparison, 
a diskette, for example, can hold 1.44 megabytes (MB). Optical discs are 
inexpensive to manufacture and data stored on them is relatively impervious 
to most environmental threats, such as power surges, or magnetic 

or:   http://tinyurl.com/5nhr5

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----- Original Message ----- 
From: "Ray" <Ray2047@xxxxxxxxx>
To: <24hoursupport@xxxxxxxxxxxxx>
Sent: Monday, February 07, 2005 7:21 PM
Subject: [24hoursupport] Re: The Myth Of The 100-Year CD-Rom

Gene wrote:
>Hi Elizabeth,
>There are no dumb questions.  Optical discs are CD's, DVD's etc.
>Which begs the queston why did the responder that raised the question in 
>Elizabeth's mind say his company uses optical discs instead of CDs. A quick 
>Google didn't offer any definite answer for me. 

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