On-Line #05 08 октября 1995

PC

IBM News - On CD-ROM for IBM.

                  IBM NEWS


 Everyone knows that a long-standing CD "CD". But little
Who knows how much memory it can keep forever.
I will prompt you to: 5 to 7 mg. For some this may seem a lot.
Do not think that it is quite priemlimo.Nekotorye companies were
development of CD, but rather adding to it, ie, on the one hand
it was possible to read information, but can not be recorded, 
ie with otrazhazhayuschey storony.A on the other side is a 
magnetic layer, where you can write and erase information.

 But that's not all. Two companies: Sony and Philips have 
developed a format HDCD as a standard CD-ROM drives high

density. This news item was removed out of the front, where on 
one side fighting heroically sitting in the trenches 
razrabotchki standard HDCD (High Density CD), ie pompanii Sony 
and Philips, but on the other sides of the front are in the 
field tents opposing them storoniki format SD DVD (Super 
Density Digital Video Disk) Corporation Toshiba. Recently, 
these two battling sides seek the support of companies that 
produce Computers in the U.S..  The most important achievement 
was the development by Matsushita single sided double layer 
disc capacity of 9 GB. It is possible help the developers 
standard SV DVD convince manufacturers that their media is much 
more convenient for storage machines.


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                                  March 2

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          Dual-layer disc ultrahigh density

             9Gbayt data in the format of CD-ROMs Multimedia


                        1.Zaschitny layer.

                        2.Standartny reflective layer.

                        3.Separiruyuschy layer.

                        4.Poluotrazhayuschy layer.

                        5.Podlozhka for printed circuits.


 Source of information Philips, announced that the company 
Philips, proposed two-sided disc that is read from

opposite directions. So, it is better to unilateral
drive from Toshiba, or double-sided disc firms Developer
Philips' Sony has not yet been luchschee decision in terms of
cost.
 If you are Interested the news or information about IBM
or that is associated with this machine, then call us.


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